The master proves himselin recognizing his limitations.

I never knew a more presumptuous person than myself. The fact that I say that shows that what I say is true.

Against criticism a man can neither protest nor defend himself; he must act in spite of it, and then it will gradually yield to him.

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.

Everything is simpler than one can imagine, and yet complicated and inter-twined beyond comprehension.

What you can do, or think you can, begin it.

The use of a thing is only a part of its significance. To know anything thoroughly, to have the full command of it in all its appliances, we must study it on its own account, independently of any special application.