I think what weakens people most is fear of wasting their strength.

I would . . . be so exhausted by my determination that I had no strength left to do the actual work.

After each creative act one has to be sustained by one's strength of character, by a moral sense, by I don't know what, lest one tumble.

I think what weakens people most is fear of wasting their strength.

Sometimes the most important thing in a whole day is the rest we take between two deep breaths.

Ultimately, we have just one moral duty: to reclaim large areas of peace in ourselves, more and more peace, and to reflect it towards others. And the more peace there is in us, the more peace there will be in our troubled world.