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Nature bears long with those who wrong her. She is patient under abuse. But when abuse has gone too far, when the time of reckoning finally comes, she is equally slow to be appeased and to turn away her wrath. (1882)
-- Nathaniel Egleston, who was writing then about deforestation, but speaks equally well about the danger of climate change today.

Albert Einstein: I used to wonder how it comes about that the electron is negative. Negative-positivethese are perfectly symmetric in physics. There is no reason whatever to prefer one to the other. Then why is the electron negative? I thought about this for a long time and at last all I could think was It won the fight! ...(more by Einstein)
Richard Feynman: It is the facts that matter, not the proofs. Physics can progress without the proofs, but we can't go on without the facts ... if the facts are right, then the proofs are a matter of playing around with the algebra correctly. ...(more by Feynman)
Quotations by:
Albert Einstein
Isaac Newton
Lord Kelvin
Charles Darwin
Srinivasa Ramanujan
Carl Sagan
Florence Nightingale
Thomas Edison
Aristotle
Marie Curie
Benjamin Franklin
Winston Churchill
Galileo Galilei
Sigmund Freud
Robert Bunsen
Louis Pasteur
Theodore Roosevelt
Abraham Lincoln
Ronald Reagan
Leonardo DaVinci
Michio Kaku
Karl Popper
Johann Goethe
Robert Oppenheimer
Charles Kettering
... (more people)
Quotations about: Atomic Bomb Biology Chemistry Deforestation Engineering Anatomy Astronomy Bacteria Biochemistry Botany Conservation Dinosaur Environment Fractal Genetics Geology History of Science Invention Jupiter Knowledge Love Mathematics Measurement Medicine Natural Resource Organic Chemistry Physics Physician Quantum Theory Research Science and Art Teacher Technology Universe Volcano Virus Wind Power Women Scientists X-Rays Youth Zoology ... (more topics)
Quotations about: Atomic Bomb Biology Chemistry Deforestation Engineering Anatomy Astronomy Bacteria Biochemistry Botany Conservation Dinosaur Environment Fractal Genetics Geology History of Science Invention Jupiter Knowledge Love Mathematics Measurement Medicine Natural Resource Organic Chemistry Physics Physician Quantum Theory Research Science and Art Teacher Technology Universe Volcano Virus Wind Power Women Scientists X-Rays Youth Zoology ... (more topics)