“In fact a man in love or one consumed with hatred creates symbols for himself, as a superstitious man does, from a passion of conferring uniqueness on things or persons. A man who knows nothing of symbols is one of Dante's sluggards. This is why art mirrors itself in primitive rites or strong passions, seeking for symbols, revolving round the primitive taste for savagery, for what is irrational”

Source: Ten Little Wizards (1988), Chapter 6 (p. 55)

Source: The Romantic Manifesto (1969), Chapter 3 ("Art and Sense of Life")

"The Calendar's New Clothes," New York Times (30 December 1999)

Source: Between Man and Man (1965), p. 178

Source: Science and Sanity (1933), p. 76.

Source: 20th century, The Analysis of Sensations (1902), p. 23, as quoted in Lenin as Philosopher: A Critical Examination of the Philosophical Basis of Leninism (1948) by Anton Pannekoek, p. 454

Source: The Great God Pan (1894), Ch. VII : The Encounter in Soho
Context: I can fancy what you saw. Yes; it is horrible enough; but after all, it is an old story, an old mystery played in our day and in dim London streets instead of amidst the vineyards and the olive gardens. We know what happened to those who chanced to meet the Great God Pan, and those who are wise know that all symbols are symbols of something, not of nothing. It was, indeed, an exquisite symbol beneath which men long ago veiled their knowledge of the most awful, most secret forces which lie at the heart of all things; forces before which the souls of men must wither and die and blacken, as their bodies blacken under the electric current. Such forces cannot be named, cannot be spoken, cannot be imagined except under a veil and a symbol, a symbol to the most of us appearing a quaint, poetic fancy, to some a foolish, silly tale. But you and I, at all events, have known something of the terror that may dwell in the secret place of life, manifested under human flesh; that which is without form taking to itself a form. Oh, Austin, how can it be? How is it that the very sunlight does not turn to blackness before this thing, the hard earth melt and boil beneath such a burden?

Source: A Wild Sheep Chase: A Novel (1982), Chapter 12, Wherefore the Worm Universe

Well, that's the question. The answer may not help him, but the question now has been asked.
The next question is what? How? And so all through the ages, people have been trying to find out the answer to that question. We've found the answer, and we do fly. This is true of every accomplishment, whether it's technology or literature, poetry, political systems or anything else. That is it. Ask the next question. And the one after that.

His explanation of the meaning of a small symbol he used when writing his signature, as quoted in an interview with David Duncan (with an image of his signature) http://www.physics.emory.edu/~weeks/misc/duncan.html, sometime around 1980.