It is good to obey all the rules when you're young; so you'll have the strength to break them when you're old.

The cheerful mind perseveres and the strong mind hews its way through a thousand difficulties.

If you are pure, if you are strong, you, one man are equal to the whole world.

The will is stronger than anything else. Everything must go down before the will, for it comes from God. A pure and strong will is omnipotent.

The world is the great gymnasium where we come to make ourselves strong.

Stand up and be strong! No fear. No superstition. Face the truth as it is!