Scientists are explorers. Philosophers are tourists.
Richard Feynman, American physicist (1918-1988), in 1985, cited in G. Laurence Nickard, Phenomenal surfaces and noumenal depths: Philosophy and quantum theory, ProQuest, 2006, p. 5. (via amiquote)
The properties of the contact agent, especially in catalytic reactions difficultly achieved, are those of the aristocracy of the atomic or molecular species concerned, and are as different from the statistical average behavior of the crowd as the actions of an educated minority of people should be different Hfrom that of an indiscriminately collected mob.
H. S. Taylor