You can choose courage or you can choose comfort, but you cannot have both.

In three words I can sum up everything I've learned about life: it goes on.

I am the wisest man alive, for I know one thing, and that is that I know nothing.

The past has no power to stop you from being present now. Only your grievance about the past can do that. What is grievance? The baggage of old thought and emotion.

He that lies down with dogs, shall rise up with fleas.

The greatest glory in living lies not in never falling, but in rising every time we fall.

He who conquers himself is the mightiest warrior.