Much testing; accuracy and precision in experiment; no guesswork or self-deception.


In: Martha Marquardt, Paul Ehrlich, Chapter XIII (p. 134), Henry Schuman. 1951

Paul Ehrlich Quotes

Much testing; accuracy and precision in experiment; no guesswork or self-deception.

Much testing; accuracy and precision in experiment; no guesswork or self-deception.

Much testing; accuracy and precision in experiment; no guesswork or self-deception.

Much testing; accuracy and precision in experiment; no guesswork or self-deception.