The line that describes the beautiful is elliptical. It has simplicity and constant change. It cannot be described by a compass, and it changes direction at every one of its points.

At one of the annual conventions of the American Society for Aesthetics much confusion arose when the Society for Anesthetics met at the same time in the same hotel.

Climbing is a heroic liberating act; and height spontaneously symbolizes things of high value, be it in the value of worldly power or of spirituality. To rise in an elevator, balloon, or airplane is to experience being liberated from weight, sublimated, invested with superhuman abilities. In addition, to rise from the earth is to approach the realm of light and overview. Therefore the negative overcoming of weight is at the same time the positive achievement of enlightenment and an unobstructed outlook.

Good art theory must smell of the studio, although its language should differ from the household talk of painters and sculptors.

Just as a chemist "isolates" a substance from contaminations that distort his view of its nature and effects, so the work of art purifies significant appearance. It presents abstract themes in their generality, but not reduced to diagrams.

All perceiving is also thinking, all reasoning is also intuition, all observation is also invention.

A system is in equilibrium when the forces constituting it are arranged in such a way as to compensate each other, like the two weights pulling at the arms of a pair of scales.