Of the truly creative no one is ever master; it must be left to go its own way.

It is sometimes essential for a husband and a wife to quarrel - they get to know each other better.

There is nothing in the world more shameful than establishing one's self on lies and fables.

The web of this world is woven of Necessity and Chance. Woe to him who has accustomed himself from his youth up to find something necessary in what is capricious, and who would ascribe something like reason to Chance and make a religion of surrendering to it.

Most pioneers are at the mercy of doubt at the beginning, whether of their worth, of their theories, or of the whole enigmatic field in which they labour.

Nothing is more fearful than imagination without taste.

You must be either the servant or the master, the hammer or the anvil.