Heaven and Earth (2009)
“I do not yet want to form a hypothesis to test, because as soon as you make a hypothesis, you become prejudiced. Your mind slides into a groove, and once it is in that groove, has difficulty noticing anything outside of it. During this time, my sense must be sharp; that is the main thing — to be sharp, yet open.”
Wondering how golden-crowned kinglets, which eat insects from open branches, survive the Maine winters, in "December 11 : Wind", p. 150
A Year in the Maine Woods (1995)
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Bernd Heinrich 2
American ornithologist 1940Related quotes

Source: 1990s and beyond, The Book of Probes : Marshall McLuhan (2011), p. 121-125

Frank B. Gilbreth, cited in: American Magazine, Vol. 103 (1927), p. 183

Source: Sir William Herschel: His Life and Works (1880), Ch.4 "Life and Works" quote from his paper "Nature and Construction of the Sun and Fixed Stars" (1795).
Context: That the emission of light must waste the sun, is not a difficulty that can be opposed to our hypothesis. Many of the operations of Nature are carried on in her great laboratory which we cannot comprehend. Perhaps the many telescopic comets may restore to the sun what is lost by the emission of light.<!-- p. 148

p. 82 of How Much Can We Boost IQ and Scholastic Achievement? (1969) https://en.wikipedia.org/wiki/How_Much_Can_We_Boost_IQ_and_Scholastic_Achievement%3F, the invited paper that created much hostility towards Jensen.

What I've Learned: James Watson (2007)

The Notebooks of Leonardo da Vinci (1883), IV Perspective of Disappearance