“The events, procedures, and results that constitute the sciences have no common structure.”— Paul Feyerabend
“In scientific thought we adopt the simplest theory which will explain all the facts under consideration and enable us to predict new facts of the same kind.”— J. B. S. Haldane
“The experimenter who does not know what he is looking for will not understand what he finds.”— Claude Bernard
“No aphorism is more frequently repeated in connection with field trials, than that we must ask Nature few questions, or, ideally, one question, at a time.”— Ronald Aylmer Fisher
“It's a lot of fun to blow soap bubbles, but it's wiser to determine the composition of the soap.”— Oswald Avery
“He had the power of keeping the subject in hand, and of using his facts to the utmost.”— Francis Darwin
“It is almost always incorrect to begin the decomposition of a system into modules on the basis of a flowchart.”— David Lorge Parnas
“The method I take to do this is not yet very usual; for instead of using only comparative and superlative words, and intellectual arguments, I have taken the course... to express myself in terms of number, weight, or measure.”— William Petty
“There seems to be a great danger in the prevailing overemphasis on the deductive-axiomatic method.”— Richard Courant
“Contrary to the misimpression that the press often conveys, science is not a tidy, orderly process. It is a process of disciplined wildness.”— Daniel S. Greenberg