To know one thing, you must know the opposite.

Because a work does not aim at reproducing natural appearances it is not, therefore, an escape from life -- but may be a penetration into reality...as expression of the significance of life, a stimulation to greater effort in living.

To be an artist is to believe in life.

One never knows what each day is going to bring. The important thing is to be open and ready for it.

Art is the expression of imagination, not the reproduction of reality.

The secret of life is to have a task, something you devote your entire life to, something you bring everything to, every minute of the day for the rest of your life. And the most important thing is, it must be something you cannot possibly do.

Between beauty of expression and power of expression there is a difference of function. The first aims at pleasing the senses, the second has a spiritual vitality which for me is more moving and goes deeper than the senses.