TODAY IN SCIENCE HISTORY ®  •  TODAYINSCI ®
Celebrating 24 Years on the Web
Find science on or your birthday

Today in Science History - Quickie Quiz
Who said: “I have no satisfaction in formulas unless I feel their arithmetical magnitude.”
more quiz questions >>
Home > Category Index for Science Quotations > Category Index L

Scientist Quotations - Categories Index for Initial L

This list includes science quotes from archaeologists, biologists, chemists, geologists, inventors and inventions, mathematicians, physicists plus pioneers in medicine, science events and technology.

This index gives quotes listed under category headings. When the category is a scientist name, the index is for any reference made ABOUT the scientist BY another person.

L (1)
Lab (1)
Label (11)
Labor (200)
Labor-Saving (3)
Labor-Time (1)
Laboratory (209)
Laboratory Notebook (1)
Laborer (9)
Laborious (17)
Labour Party (1)
Labyrinth (12)
Lace (2)
Lacedaemonian (1)
Lachrymose (1)
Lack (125)
Lacking (2)
Lacroix_Sylvestre (1)
Lactic Acid (2)
Lacy (1)
Lad (1)
Ladder (17)
Ladies Home Journal (1)
Lady (12)
Ladybug (1)
Laevo (1)
Lafferism (1)
Lag (1)
Lagging (1)
Laid (7)
Laid Bare (1)
Lain (1)
Lair (1)
Laissez Faire (1)
Laissez-Faire (1)
Laity (1)
Lakatos (1)
Lake (36)
Lake District (2)
Lake Michigan (1)
Lake Wobegon (1)
Lamb (6)
Lamb Shift (1)
Lame (5)
Lamely (1)
Lament (11)
Lamentable (5)
Lamentation (1)
Lamp (36)
Lamp Post (1)
Lamppost (1)
Land (129)
Land Bridge (1)
Land Grant College (1)
Land Of The Free (1)
Land Power (1)
Lander (1)
Landform (1)
Landing (3)
Landings (1)
Landlady (1)
Landmark (9)
Landowner (1)
Landscape (46)
Lane (1)
Language (307)
Language Barrier (2)
Language Of Science (1)
Lantern (8)
Lanthanum (2)
Lao-Tse (2)
Lap (9)
Lapel Pin (1)
Lapidary (1)
Lapland (1)
Lapse (2)
Laputa (1)
Lapwing (1)
Lard (1)
Large (398)
Large Hadron Collider (6)
Large Scale (1)
Large-Scale (1)
Largely (14)
Larger (14)
Larger Picture (1)
Largest (39)
Lark (2)
Larva (5)
Laryngologist (1)
Laser (5)
Lash (3)
Lasker_Mary (1)
Lass (1)
Lassitude (4)
Last (425)
Last Thing (3)
Last Word (10)
Last Words (6)
Last-Born (1)
Last-Minute (1)
Lasting (7)
Late (119)
Latecomer (1)
Lately (1)
Latency (1)
Lateness (4)
Latent (13)
Latent Heat (7)
Later (18)
Lateral (3)
Latest (1)
Lath (1)
Lathe (1)
Latin (43)
Latin Proverb (1)
Latitude (5)
Latrine (1)
Latter (21)
Lattice (2)
Laudable (1)
Laugh (50)
Laughable (4)
Laughing (1)
Laughing Stock (1)
Laughter (33)
Laughter-Silvered (1)
Launch (21)
Laundering (1)
Laundry (1)
Laureate (2)
Laurel (2)
Laurence_Paul (1)
Lava (12)
Lavender (1)
Lavishness (1)
Lavrion (1)
Law (912)
Law And Order (5)
Law Of Averages (1)
Law Of Causation (2)
Law Of Chance (1)
Law Of Conservation Of Energy (1)
Law Of Ecology (5)
Law Of Gravitation (23)
Law Of Gravity (16)
Law Of Large Numbers (1)
Law Of Motion (14)
Law Of Nature (79)
Law Of Physics (5)
Law Of Refraction (1)
Law Of Science (2)
Law Of Universal Gravitation (3)
Law Suit (1)
Lawful (7)
Lawfulness (5)
Lawgiver (1)
Lawn (5)
Lawrence Livermore National Laboratory (2)
Laws Of Motion (10)
Lawyer (27)
Laxative (1)
Laxity (2)
Laxness (1)
Lay (3)
Lay Down (1)
Layer (41)
Layered (2)
Laying (1)
Layman (21)
Laymen (1)
Layout (2)
Laypeople (2)
Laziness (9)
Lazy (10)
LCD (1)
Lead (389)
Lead Poisoning (4)
Leaden (2)
Leader (50)
Leadership (13)
Leading (17)
Leading Edge (1)
Leaf (73)
Leaf Cutter (1)
League (2)
Leak (4)
Leam (1)
Lean (7)
Leaned (1)
Leanness (1)
Leap (56)
Leap Year (1)
Leapfrog (2)
Lear (1)
Learn (667)
Learned (235)
Learner (10)
Learning (290)
Leased (1)
Least (75)
Leather (4)
Leathern (1)
Leave (137)
Leave Alone (3)
Leave No Stone Unturned (1)
Leave Out (2)
Leave The Light On (1)
Leaving (10)
Lecherous (1)
Lechery (1)
Lecture (109)
Lecture Hall (2)
Lecturer (13)
Led (1)
Ledge (1)
Leech (6)
Leek (1)
Leerstelle (1)
Lees (1)
Left (15)
Left Out (1)
Left-Handed (1)
Leftover (1)
Leg (35)
Legacy (14)
Legal (9)
Legality (1)
Legally (1)
Legato (1)
Legend (18)
Legendary (1)
Legerdemain (2)
Legibility (2)
Legion (4)
Legislate (1)
Legislation (10)
Legislator (4)
Legislature (4)
Legitimacy (5)
Legitimate (26)
Legitimately (1)
Lego (1)
Leibnitz_Gottfried (2)
Leicester (1)
Leicestershire (1)
Leisure (24)
Leisure Class (1)
Leitmotif (1)
Lemaitres (1)
Lemma (2)
Lemon (2)
Lend (4)
Length (24)
Lengthened (1)
Lengthening (1)
Lengthy (3)
Lenin (2)
Lens (15)
Lent (1)
Leopard (3)
Lepidoptera (1)
Lepidoptology (1)
Leprosy (2)
Lesbian (1)
Less (105)
Lessen (6)
Lessening (3)
Lesser (6)
Lessing_Gotthold (1)
Lesson (58)
Lesson_Rene (1)
Lest (3)
Let (63)
Let There Be Light (4)
Let-Down (1)
Lethal (4)
Lethargic (2)
Lethargy (1)
Letter (116)
Letterpress (1)
Lettuce (1)
Leukemia (4)
Leukocyte (2)
Level (68)
Levelling (1)
Lever (13)
LeVerrier_Urbain (3)
Leviathan (1)
LeviStrausss_Claude (1)
Lewd (2)
Lewis And Clark (1)
Lex (1)
Lexicographer (1)
Lexicography (1)
Leyden Jar (2)
Lhotse (1)
Liability (7)
Liable (5)
Liar (8)
Libation (1)
Libel (1)
Liberal (8)
Liberal Arts (5)
Liberal Education (1)
Liberalism (2)
Liberalize (1)
Liberally (1)
Liberate (10)
Liberated (2)
Liberating (1)
Liberation (12)
Liberator (2)
Libertarian (1)
Liberty (29)
Libido (2)
Librarian (2)
Library (52)
Libya (1)
Lice (1)
Licence (1)
License (3)
Lichen (2)
Licit (1)
Lick (4)
Lid (1)
Lie (365)
Lie Group (2)
Lie Groups (1)
Lieu (1)
Life (1861)
Life And Death (1)
Life And Habit (1)
Life Cycle (5)
Life Expectancy (3)
Life Form (6)
Life History (2)
Life Insurance (1)
Life Jacket (1)
Life Magazine (1)
Life On Earth (15)
Life Science (1)
Life Span (1)
Life Support (1)
Life Worth Living (1)
Life-Cycle (1)
Life-Form (6)
Life-Giving (2)
Life-If (1)
Life-Saving (1)
Life-Span (1)
Life-Style (1)
Life-Support (2)
Life-Time (1)
Lifeblood (4)
Lifeform (2)
Lifeguard (2)
Lifeless (15)
Lifeline (1)
Lifelong (10)
Lifesaving (1)
Lifespan (9)
Lifestyle (1)
Lifetime (40)
Lifetme (1)
Lift (56)
Lift Off (3)
Lifting (1)
Liftoff (2)
LiftsNational (1)
Light (632)
Light Bulb (6)
Light Wave (2)
Light Year (1)
Light Years (1)
Light-Hours (1)
Light-Years (2)
Lighten (2)
Lighter (2)
Lightheartedly (1)
Lighthouse (6)
Lighting (5)
Lightly (2)
Lightning (48)
Lightning Conductor (1)
Lightning-Rod (2)
Like (22)
Like Begat Like (1)
Likelihood (10)
Likeliness (1)
Likely (36)
Likeness (18)
Likening (1)
Likewise (2)
Liking (4)
Lilly (1)
Lily (5)
Lily_William (1)
Limb (8)
Limbo (2)
Lime (3)
Lime Water (1)
Limelight (2)
Limerick (6)
Limestone (6)
Limey (1)
Limit (293)
Limitation (52)
Limited (102)
Limiting Factor (1)
Limitless (14)
Limnology (1)
Limpid (3)
Lincoln (1)
Lincoln Highway (4)
Lincolnshire (1)
Linden (1)
Line (99)
Line Of Force (1)
Line Of Thought (2)
Lineage (3)
Linear (13)
Linear Accelerator (1)
Linear Algebra (1)
Linear Function (1)
Linear Theory (1)
Linen (8)
Liner (1)
Linger (14)
Lingering (2)
Linguist (2)
Linguistic (3)
Linguistics (39)
Link (46)
Linkage (5)
Linked (1)
Linking (8)
Linotype (3)
Lint (1)
Lion (22)
Lion's Share (1)
Liouville (1)
Lip (4)
Lip Service (2)
Lips (1)
Liquefaction (2)
Liquid (50)
Liquid Crystal (1)
Liquid Hydrogen (1)
Liquifaction (1)
Liquor (6)
Lisp (1)
Lissajous_Jules (1)
List (10)
Listed (1)
Listen (79)
Listened (1)
Listener (7)
Listening (26)
Listless (1)
Liter (1)
Literacy (10)
Literal (12)
Literally (30)
Literary (15)
Literary Philosophical Society (1)
Literate (2)
Literati (1)
Literature (112)
Litharge (2)
Litheness (1)
Lithium (3)
Lithosphere (2)
Litigation (1)
Litigious (2)
Litmus (1)
Litoptern (1)
Litter (5)
Littered (2)
Little (714)
Little League (1)
Little-Known (1)
Littre_Alexis (1)
Littre_Emile (1)
Liturgical (1)
Live (646)
Live. (1)
Lived (3)
Livelier (1)
Livelihood (13)
Lively (17)
Liven (1)
Liver (22)
Liverpool (3)
Liverwort (1)
Livestock (1)
Livid (1)
Living (492)
Living Being (3)
Living Body (3)
Living Earth (5)
Living Quarters (1)
Living Room (3)
Living Thing (4)
Living Things (8)
Living World (1)
Living_World (1)
Livy_Titus (1)
Lizard (7)
Load (12)
Loaded (4)
Loaf (5)
Loafer (2)
Loam (1)
Loathe (4)
Loathsome (3)
Lobby (2)
Lobe (1)
Lobster (5)
Local (25)
Local News (1)
Locale (2)
Locality (8)
Localization (3)
Locate (7)
Located (2)
Locating (1)
Location (15)
Loch Ness (1)
Loch Ness Monster (2)
Lock (14)
Locker (1)
Lockheed (1)
Locks (1)
Lockyer_Norman (1)
Locomotion (1)
Locomotive (8)
Locus (5)
Locust (2)
Lode (2)
Lodestone (7)
Lodge (3)
Lodging (2)
Loft (1)
Loftiest (1)
Loftiness (3)
Lofty (15)
Log (7)
Logarithm (12)
Logarithmic (5)
Logarithmically (1)
Logging (3)
Logic (311)
Logic Gate (1)
Logical (57)
Logician (18)
LogiciansDefine (1)
Logistics (1)
Lolly (1)
London (14)
London Times (1)
Lone (2)
Loneliness (6)
Lonely (24)
Loner (1)
Lonesome (1)
Long (776)
Long Ago (12)
Long Division (1)
Long Island (1)
Long Range (1)
Long Run (1)
Long Slip (1)
Long Term (4)
Long Winded (1)
Long-Chain (1)
Long-Expected (1)
Long-Haired (1)
Long-Held (1)
Long-Lived (2)
Long-Range (3)
Long-Suffering (1)
Long-Term (11)
Long-Winded (1)
Longbow (1)
Longer (10)
Longest-Term (1)
Longevity (6)
Longhaired (1)
Longing (19)
Longings (1)
Longitude (7)
Longstanding (1)
Lonsdaleite (1)
Look (584)
Look Back (5)
Look Backward (1)
Look Down (3)
Looked (1)
Looking (191)
Loom (20)
Loop (6)
Loophole (2)
Loose (14)
Loose End (3)
Loosely (1)
Loosen (1)
Loosened (1)
Looseness (1)
Loosening (1)
Lorax (1)
Lord (96)
Lord Bryce (1)
Lord Chancellor (1)
Lord Mayor (1)
Lord Of The Rings (6)
Lordship (1)
Lore (1)
Lorelei (1)
Lorentz (1)
Lorentz_Konrad (1)
Los (4)
Los Alamos (5)
Lose (162)
Lose Touch (1)
Loser (3)
Losing (1)
Losing Battle (1)
Loss (116)
Loss Of Life (1)
Lost (34)
Lot (151)
Lottery (1)
Lotus-Eater (1)
Loud (9)
Loudly (1)
Loudness (3)
Loudspeaker (1)
Louis XIV (1)
Louisville (1)
Louse (6)
Lousy (1)
Lovable (1)
Love (324)
Love Story (1)
Love-Of-Country (1)
Loved (1)
Loveliness (6)
Lovely (12)
Lover (11)
Low (86)
Low-Key (1)
Lower (11)
Lower Case (1)
Lowercase (1)
Lowered (2)
Lowering (4)
Lowest (10)
Lowland (1)
Loyal (5)
Loyalty (10)
Lt. Uhura (1)
Lubricate (1)
Lubrication (1)
Lucid (9)
Lucidity (7)
Lucifer (2)
Luck (44)
Luckless (1)
LuckRipe (1)
Lucky (13)
Lucrative (1)
Ludicrous (7)
Lueckenfuellung (1)
Luggage (5)
Lukewarm (2)
Lull (2)
Lumber (5)
Luminary (4)
Luminescence (2)
Luminiferous (1)
Luminosity (6)
Luminous (19)
Lump (5)
Lunar (9)
Lunar Module (1)
Lunatic (9)
Lunatic Fringe (1)
Lunch (6)
Lung (36)
Lung Cancer (7)
Lupus (1)
Lurch (1)
Lure (9)
Lurk (5)
Lurking (7)
Lush (5)
Lust (7)
Luster (1)
Lustful (1)
Lustre (3)
Lustrous (1)
Lute (1)
Lutetium (1)
Lutheran (1)
Luxembourg (1)
Luxuriance (1)
Luxuriant (1)
Luxurious (1)
Luxury (21)
Lychee (1)
Lye Ring (1)
Lyell (1)
Lying (55)
Lymphocyte (1)
Lynching (2)
Lyre (1)
Lyrical (1)
Lysin (1)
Lysis (4)
Lysosyme (1)


Carl Sagan Thumbnail In science it often happens that scientists say, 'You know that's a really good argument; my position is mistaken,' and then they would actually change their minds and you never hear that old view from them again. They really do it. It doesn't happen as often as it should, because scientists are human and change is sometimes painful. But it happens every day. I cannot recall the last time something like that happened in politics or religion. (1987) -- Carl Sagan
Quotations by:Albert EinsteinIsaac NewtonLord KelvinCharles DarwinSrinivasa RamanujanCarl SaganFlorence NightingaleThomas EdisonAristotleMarie CurieBenjamin FranklinWinston ChurchillGalileo GalileiSigmund FreudRobert BunsenLouis PasteurTheodore RooseveltAbraham LincolnRonald ReaganLeonardo DaVinciMichio KakuKarl PopperJohann GoetheRobert OppenheimerCharles Kettering  ... (more people)

Quotations about:Atomic  BombBiologyChemistryDeforestationEngineeringAnatomyAstronomyBacteriaBiochemistryBotanyConservationDinosaurEnvironmentFractalGeneticsGeologyHistory of ScienceInventionJupiterKnowledgeLoveMathematicsMeasurementMedicineNatural ResourceOrganic ChemistryPhysicsPhysicianQuantum TheoryResearchScience and ArtTeacherTechnologyUniverseVolcanoVirusWind PowerWomen ScientistsX-RaysYouthZoology  ... (more topics)
Sitewide search within all Today In Science History pages:
Visit our Science and Scientist Quotations index for more Science Quotes from archaeologists, biologists, chemists, geologists, inventors and inventions, mathematicians, physicists, pioneers in medicine, science events and technology.

Names index: | A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z |

Categories index: | 1 | 2 | A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z |
Thank you for sharing.
- 100 -
Sophie Germain
Gertrude Elion
Ernest Rutherford
James Chadwick
Marcel Proust
William Harvey
Johann Goethe
John Keynes
Carl Gauss
Paul Feyerabend
- 90 -
Antoine Lavoisier
Lise Meitner
Charles Babbage
Ibn Khaldun
Euclid
Ralph Emerson
Robert Bunsen
Frederick Banting
Andre Ampere
Winston Churchill
- 80 -
John Locke
Bronislaw Malinowski
Bible
Thomas Huxley
Alessandro Volta
Erwin Schrodinger
Wilhelm Roentgen
Louis Pasteur
Bertrand Russell
Jean Lamarck
- 70 -
Samuel Morse
John Wheeler
Nicolaus Copernicus
Robert Fulton
Pierre Laplace
Humphry Davy
Thomas Edison
Lord Kelvin
Theodore Roosevelt
Carolus Linnaeus
- 60 -
Francis Galton
Linus Pauling
Immanuel Kant
Martin Fischer
Robert Boyle
Karl Popper
Paul Dirac
Avicenna
James Watson
William Shakespeare
- 50 -
Stephen Hawking
Niels Bohr
Nikola Tesla
Rachel Carson
Max Planck
Henry Adams
Richard Dawkins
Werner Heisenberg
Alfred Wegener
John Dalton
- 40 -
Pierre Fermat
Edward Wilson
Johannes Kepler
Gustave Eiffel
Giordano Bruno
JJ Thomson
Thomas Kuhn
Leonardo DaVinci
Archimedes
David Hume
- 30 -
Andreas Vesalius
Rudolf Virchow
Richard Feynman
James Hutton
Alexander Fleming
Emile Durkheim
Benjamin Franklin
Robert Oppenheimer
Robert Hooke
Charles Kettering
- 20 -
Carl Sagan
James Maxwell
Marie Curie
Rene Descartes
Francis Crick
Hippocrates
Michael Faraday
Srinivasa Ramanujan
Francis Bacon
Galileo Galilei
- 10 -
Aristotle
John Watson
Rosalind Franklin
Michio Kaku
Isaac Asimov
Charles Darwin
Sigmund Freud
Albert Einstein
Florence Nightingale
Isaac Newton


by Ian Ellis
who invites your feedback
Thank you for sharing.
Today in Science History
Sign up for Newsletter
with quiz, quotes and more.