You alone are enough. You have nothing to prove to anybody.

Any man can make mistakes, but only an idiot persists in his error.

There is nothing more difficult to take in hand, more perilous to conduct, or more uncertain in its success, than to take the lead in the induction of a new order of things.

In this age, the man who dares to think for himself and to act independently does a service to his race.

If you want to conquer fear, don't sit home and think about it. Go out and get busy.

If things seem under control, you are just not going fast enough.

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.

When you say 'yes' to others, make sure you are not saying 'no' to yourself.

What we achieve inwardly will change outer reality.

There is only one success—to be able to spend your life in your own way.

The reason angels can fly is because they take themselves lightly.

Happy the man, and happy he alone, he who can call today his own; he who, secure within, can say, tomorrow, do thy worst, for I have lived today.

It never ceases to amaze me: we all love ourselves more than others their opinions more than other people, but care more about their opinion than our own.

I could not understand how any man could be so brutalized as to claim the right to dispose of the lives of others, nor how any man could be so lacking in self-esteem as to grant to others the right to dispose of his life.