The dancer, or dancers, must transform the stage for the audience as well as for themselves into an autonomous, complete, virtual realm, and all motions into a play of visible forces in unbroken, virtual time...Both space and time, as perceptible factors, disappear almost entirely in the dance illusion.

The secret of 'fusion' is the fact that the artist's eye sees in nature... an inexhaustible wealth of tension, rhythms, continuities, and contrasts which can be rendered in line and color.

To trace the development of mind from earliest times ... requires ... not a categorical concept, but a functional one.... The most promising operational principle for this purpose is the principle of individuation.

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.

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.

The function of art is to acquaint the beholder with something he has not known before.

The limits of thought are not so much set from outside, by the fullness or poverty of experiences that meet the mind, as from within, by the power of conception, the wealth of formulative notions with which the mind meets experiences.