Charles Darwin in a letter to Henry Fawcett (Darwin & Seward, 1903), cited in Plant Microevolution and Conservation in Human-influenced Ecosystems (Cambridge University Press : Nov 26, 2009), p. 12.
About 30 years ago there was much talk that geologists ought to observe and not to theorize; and I well remember someone saying that at that rate a man might as well go into a gravel-pit and count the pebbles and describe the colours. How odd it is that anyone should not see that all observation must be for or against some view if it is to be of any service!
Richard Feynman, "Adapted Caltech 1974 Commencement Address", Surely You're Joking Mr. Feynman (1985), p. 341.
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The idea is to try to give all the information to help others to judge the value of your contribution; not just the information that leads to judgment in one particular direction or another.