The part always has a tendency to reunite with its whole in order to escape from its imperfection.

For once you have tasted flight you will walk the earth with your eyes turned skywards, for there you have been and there you will long to return.

Here is a thing which the more it is needed the more it is rejected: and this is advice, which is unwillingly heeded by those who most need it, that is to say, by the ignorant.

Though I may not . . . be able to quote other authors, I shall rely on that which is much greater and more worthy - on experience.

Nature never breaks her own laws.

Anyone who invokes authors in discussion is not using his intelligence but his memory.

True and great love springs out of great knowledge, and where you know little you can love but little or not at all.