The power of understanding symbols, i.e. of regarding everything about a sense-datum as irrelevant except a certain form that it embodies, is the most characteristic mental trait of mankind. It issues in an unconscious, spontaneous process of abstraction, which goes on all the time in the human mind: a process of recognizing the concept in any configuration given to experience, and forming a conception accordingly. That is the real sense of Aristotle's definition of Man as "the rational animal".

Nature, as man has always known it, he knows no more. Since he has learned to esteem signs above symbols, to suppress his emotional reactions in favor of practical ones and make use of nature instead of holding so much of it sacred, he has altered the face, if not the heart, of reality.

Feeling, in the broad sense of whatever is felt in any way, as sensory stimulus or inward tension, pain, emotion or intent, is the mark of mentality.

It is the historical mind, rather than the scientific (in the physicist's sense), that destroyed the mythical orientation of European culture; the historian, not the mathematician, introduced the "higher criticism," the standard of actual fact. It is he who is the real apostle of the realistic age.

A mind that is very selective to forms... is apt to use its images metaphorically, to exploit their possible significance for the conception of remote or intangible ideas.

Music is the tonal analogue of emotive life.

The arts objectify subjective reality, and subjectify outward experience of nature. Art education is the education of feeling, and a society that neglects it gives itself up to formless emotion. Bad art is corruption of feeling.