Every heart that has beat strongly and cheerfully has left a hopeful impulse behind it in the world, and bettered the tradition of mankind.

Wonder rather than doubt is the root of all knowledge.

Happiness resides not in possessions, and not in gold, happiness dwells in the soul.

The truth is on the march and nothing will stop it.

There is nothing stronger in the world than gentleness.

I am prepared for the worst, but hope for the best.

We can't help everyone, but everyone can help someone.

Every heart that has beat strongly and cheerfully has left a hopeful impulse behind it in the world, and bettered the tradition of mankind.

I've been absolutely terrified every moment of my life - and I've never let it keep me from doing a single thing I wanted to do.

The meaning I picked, the one that changed my life: Overcome fear, behold wonder.