The highest knowledge is to know that we are surrounded by mystery.

All art speaks in signs and symbols. No one can explain how it happens that the artist can waken to life in us the existence that he has seen and lives through. No artistic speech is the adequate expression of what it represents; its vital force comes from what is unspoken in it.

Pain is a more terrible lord of mankind than even death itself.

Whatever you have received more than others-in health, in talents, in ability, in success, in a pleasant childhood, in harmonious conditions of home life-all this you must not take to yourself as a matter of course. In gratitude for your good fortune, you must remember in return some sacrifice of your own life for another life.

No one can give a definition of the soul. But we know what it feels like. The soul is the sense of something higher than ourselves, something that stirs in us thoughts, hopes, and aspirations which go out to the world of goodness, truth and beauty. The soul is a burning desire to breathe in this world of light and never to lose it--to remain children of light.

I believe that I possess this value: to serve Jesus. I am less at peace than if my goal would be to attain a professorship and a good life, but I live. And that gives me the tremendous feeling of happiness, as if one would hear music. One feels uprooted, because one asks, what lies ahead, what decisions should I make-but more alive, happier than those anchored in life. To drift with released anchor.

I am certain and have always stressed that the destination of mankind is to become more and more humane. The ideal of humanity has to be revived.