The sun, the moon and the stars would have disappeared long ago... had they happened to be within the reach of predatory human hands.

The greatest task before civilization at present is to make machines what they ought to be, the slaves, instead of the masters of men.

The aesthetic pleasure of dance is a secondary reflection of the primary, vital joy of courtship.

The romantic embrace can only be compared with music and with prayer.

Dancing and building are the two primary and essential arts. The art of dancing stands at the source of all the arts that expressthemselves first in the human person. The art of building, or architecture, is the beginning of all the arts that lie outside the person; and in the end they unite. Music, acting, poetry proceed in the one mighty stream; sculpture, painting, all the arts of design, in the other. There is no primary art outside these two arts, for their origin is far earlier than man himself; and dancing came first.

The conflict of forces and the struggle of opposing wills are of the essence of our universe and alone hold it together.

The mathematician has reached the highest rung on the ladder of human thought.