As one grows older one must try not to work oneself to death unnecessarily. At least that's how it is with me... I can scarcely keep pace and must watch out that the creative forces do not chase me around the universe in a wallop.

Who looks outside, dreams; who looks inside, awakes.

I must also have a dark side if I am to be whole.

The growth of the mind is the widening of the range of consciousness, and each step forward has been a most painful and laborious achievement.

The debt we owe to the play of imagination is incalculable.

What we lack is intensity of life.

Personality is the supreme realization of the innate idiosyncracy of a living being. It is an act of high courage flung in the face of life, the absolute affirmation of all that constitutes the individual, the most successful adaptation to the universal conditions of existence coupled with the greatest possible freedom for self-determination.