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

Be strong! Don't talk of ghosts and devils.

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.

I think you can be defiant and rebellious and still be strong and positive.

A strong spirit transcends rules.

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