“Science is a special kind of explanation of the things we see around us. It starts with a problem and curiosity. Something strikes the scientist as odd. It doesn’t fit in with the usual explanation. Maybe harder thinking or more careful observation will resolve the problem. If it remains apuzzle, it stimulates the scientist’s imagination.”

Mathematical Methods in Science (1977)
Context: We wish to see... the typical attitude of the scientist who uses mathematics to understand the world around us.... In the solution of a problem... there are typically three phases. The first phase is entirely or almost entirely a matter of physics; the third, a matter of mathematics; and the intermediate phase, a transition from physics to mathematics. The first phase is the formulation of the physical hypothesis or conjecture; the second, its translation into equations; the third, the solution of the equations. Each phase calls for a different kind of work and demands a different attitude.<!--p.164

Darwin’s Black Box: The Biochemical Challenge to Evolution (1996)

Source: Blink: The Power of Thinking Without Thinking

you don't see electrons, gravity, or black holes either
Source: Wonderful Life (1989), p. 279

Source: 1960s, "The Use and Misuse of Game Theory," 1962, p. 108

Source: Triton (1976), Chapter 3 “Avoiding Kangaroos” (p. 123)

Nobel lecture (1973)

Naum Gabo (1937) "Editorial", p. 9
1936 - 1977, Circle: International Survey of Constructive Art, 1937

Section 1 (p. 86)
Tales of Nevèrÿon (1979)