Great necessity elevates man, petty necessity casts him down

Tomorrow sees undone, what happens not to-day; Still forward press, nor never tire! The possible, with steadfast trust, Resolve should be by the forelock grasp. Then she will ne'er let go her clasp, And labors on, because she must.

Properly speaking, we learn from those books only that we cannot judge. The author of a book that I am competent to criticise would have to learn from me.

Against great advantages in another, there are no means of defending ourselves except love.

Whoever wishes to keep a secret must hide the fact that he possesses one.

Let's plunge ourselves into the roar of time, the whirl of accident; may pain and pleasure, success and failure, shift as they will -- it's only action that can make a man.

Energy will do anything that can be done in this world.