“[I]t is necessary to insist upon this extraordinary but undeniable fact: experimental science has progressed thanks in great part to the work of men astoundingly mediocre, and even less than mediocre. That is to say, modern science, the root and symbol of our actual civilization, finds a place for the intellectually commonplace man and allows him to work therein with success.”

Quote magazine (15 June 1958)
1950s
Context: When human beings have been fascinated by the contemplation of their own hearts, the more intricate biological pattern of the female has become a model for the artist, the mystic, and the saint. When mankind turns instead to what can be done, altered, built, invented, in the outer world, all natural properties of men, animals, or metals become handicaps to be altered rather than clues to be followed. Women want mediocre men, and men are working hard to be as mediocre as possible.

Reflections

Great Books: The Foundation of a Liberal Education (1954)

Variant: Some men are born mediocre, some men achieve mediocrity, and some men have mediocrity trust upon them.
Source: Catch-22 (1961)
Context: Some men are born mediocre, some men achieve mediocrity, and some men have mediocrity thrust upon them. With Major Major it had been all three.

Source: 84, Charing Cross Road

Source: Blink: The Power of Thinking Without Thinking

They still believe in the astronomy of Joshua and the geology of Moses. They believe in the miracles of the past, and deny the demonstrations of the present. They are the foes of facts—the enemies of knowledge. A desire to be happy here, they regard as wicked and worldly—but a desire to be happy in another world, as virtuous and spiritual.
The Truth (1896)

"The Scientific Revolution and the Machine"
The Common Sense of Science (1951)

"Sense and Sensibility"
The Common Sense of Science (1951)