No idea is final.

Aim above morality. Be not simply good; be good for something.

The earth is the mother of all people, and all people should have equal rights upon it.

All experience is great providing you live through it.

'Tis never too late to be wise.

Trifles make perfection, and perfection is no trifle.

You make your life meaningful by applying meaning to it.

Life was meant to be lived, and curiosity must be kept alive. One must never, for whatever reason, turn his back on life.

Often when you think you’re at the end of something, you’re at the beginning of something else.

Ultimately a genuine leader is not a searcher for consensus but a molder of consensus.

Resilience — the ability to brush off pain.

The great tragedy of life is not that men perish, but that they cease to love.