The faith of scientists in the power and truth of mathematics is so implicit that their work has gradually become less and less observation, and more and more calculation.... But the facts which are accepted by virtue of these tests are not actually observed at all.

The intellectual treatment of any datum, any experience, any subject, is determined by the nature of our questions, and only carried out in the answers.

We have no physical model of this endless rhythm of individuation and involvement, we do have its image in the world of art, most purely in dance.

The power of magic has no known limits. A person knows, in a fair way, his own physical capacities, the weight of the blows he can deal, the furthest range of his arrows, the strength of his voice, the speed and endurance of his running; but the reaches of his mind are indefinite and, to his feeling, infinite.

Music is 'significant form,' and its significance is that of a symbol, a highly articulated, sensuous object, which by virtue of its dynamic structure can express the forms of vital experience which language is peculiarly unfit to convey. Feeling, life, motion and emotion constitute its import.

A signal is comprehended if it serves to make us notice the object or situation it bespeaks. A symbol is understood when we conceive the idea it presents.

Speech is the mark of humanity. It is the normal terminus of thought.