It doesn't matter whether or not you have a head, you must wear the right sort of hat

Every man has his folly, but the greatest folly of all … is not to have one.

Be always restless, unsatisfied, unconforming. Whenever a habit becomes convenient, smash it! The greatest sin of all is satisfaction.

Be sure to live up to your reputation for honesty and goodness, because many souls who believe you to be honest and good have placed themselves in your hands.

The human soul is heavy, clumsy, held in the mud of the flesh. Its perceptions are still coarse and brutish. It can divine nothing clearly, nothing with certainty.

the highest point a man can attain is not Knowledge, or Virtue, or Goodness, or Victory, but something even greater, more heroic and more despairing: Sacred Awe!

Look, one day I had gone to a little village. An old grandfather of ninety was busy planting an almond tree. ‘What, grandfather!’ I exclaimed. ‘Planting an almond tree?’ And he, bent as he was, turned around and said: ‘My son, I carry on as if I should never die.’ I replied: ‘And I carry on as if I was going to die any minute.’ Which of us was right, boss?