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Who said: “A change in motion is proportional to the motive force impressed and takes place along the straight line in which that force is impressed.”
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Home > Category Index for Science Quotations > Category Index P > Category: Properly

Properly Quotes (5 quotes)

Before an experiment can be performed, it must be planned—the question to nature must be formulated before being posed. Before the result of a measurement can be used, it must be interpreted—nature's answer must be understood properly. These two tasks are those of the theorist, who finds himself always more and more dependent on the tools of abstract mathematics. Of course, this does not mean that the experimenter does not also engage in theoretical deliberations. The foremost classical example of a major achievement produced by such a division of labor is the creation of spectrum analysis by the joint efforts of Robert Bunsen, the experimenter, and Gustav Kirchoff, the theorist. Since then, spectrum analysis has been continually developing and bearing ever richer fruit.
'The Meaning and Limits of Exact Science', Science (30 Sep 1949), 110, No. 2857, 325. Advance reprinting of chapter from book Max Planck, Scientific Autobiography (1949), 110.
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Hypothesis is a tool which can cause trouble if not used properly. We must be ready to abandon our hypothesis as soon as it is shown to be inconsistent with the facts.
In The Art of Scientific Investigation (1950,1957), 66.
Science quotes on:  |  Abandon (26)  |  Cause (184)  |  Fact (491)  |  Hypothesis (201)  |  Inconsistent (4)  |  Ready (9)  |  Tool (52)  |  Trouble (39)

I strive that in public dissection the students do as much as possible so that if even the least trained of them must dissect a cadaver before a group of spectators, he will be able to perform it accurately with his own hands; and by comparing their studies one with another they will properly understand, this part of medicine.
In De Humani Corporis Fabrica Libri Septem [Seven Books on the Structure of the Human Body] (1543), 547. Quoted and trans. in Charles Donald O'Malley, Andreas Vesalius of Brussels, 1514-1564 (1964), 144.
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It is not within the power of the properly constructed human mind to he satisfied. Progress would cease if this were the case.
From Cameron Prize Lecture (1928), delivered before the University of Edinburgh. As quoted in J.B. Collip 'Frederick Grant Banting, Discoverer of Insulin', The Scientific Monthly (May 1941), 52, No. 5, 474.
Science quotes on:  |  Case (39)  |  Cease (10)  |  Constructed (3)  |  Human Mind (40)  |  Power (200)  |  Progress (278)  |  Satisfied (7)

We are placed here with certain talents and capabilities. It is up to each of us to use those talents and capabilities as best you can. If you do that, I think there is a power greater than any of us that will place the opportunities in our way, and if we use our talents properly, we will be living the kind of life we should live.
At NASA press conference (9 Apr 1959) to introduce the Mercury 7 astronauts. As quoted in Joseph N. Bell, Seven Into Space: The Story of the Mercury Astronauts (1960), 69.
Science quotes on:  |  Best (91)  |  Capability (33)  |  Certain (33)  |  Greater (33)  |  Kind (52)  |  Life (693)  |  Live (47)  |  Opportunity (29)  |  Place (59)  |  Power (200)  |  Talent (43)


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