There are two kinds of geniuses. The characteristic of the one is roaring, but the lightning is meagre and rarely strikes; the other kind is characterized by reflection by which it constrains itself or restrains the roaring. But the lightning is all the more intense; with the speed and sureness of lightning it hits the selected particular points - and is fatal.

Truth is not something you can appropriate easily and quickly. You certainly cannot sleep or dream yourself to the truth. No, you must be tried, do battle, and suffer if you are to acquire the truth for yourself. It is a sheer illusion to think that in relation to the truth there is an abridgement, a short cut that dispenses with the necessity for struggling for it.

Boredom is the root of all evil - the despairing refusal to be oneself.

Adversity draws men together and produces beauty and harmony in life's relationships, just as the cold of winter produces ice-flowers on the window-panes, which vanish with the warmth.

It is the duty of the human understanding to understand that there are things which it cannot understand, and what those things are. Human understanding has vulgarly occupied itself with nothing but understanding, but if it would only take the trouble to understand itself at the same time it would simply have to posit the paradox.

It is better to try something and fail than to try nothing and succeed. The result may be the same, but you won't be. We always grow more through defeats than victories.

What I really need is to get clear about what I must do, not what I must know, except insofar as knowledge must precede every act. What matters is to find a purpose, to see what it really is that God wills that I shall do; the crucial thing is to find a truth which is truth for me, to find the idea for which I am willing to live and die.