Know thyself.

Freedom from the desire for an answer is essential to the understanding of a problem.

Don't get set into one form, adapt it and build your own, and let it grow, be like water.

If you can't you must, and if you must you can.

When I go, God's going to have to give up his favourite chair.

Do not look for approval except for the consciousness of doing your best.

We are what we repeatedly do. Excellence, then, is not an act, but a habit.

I will take fate by the throat; it will never bend me completely to its will.

As long as I'm in great shape, nobody beats me, for sure.

Be more concerned with your character than your reputation, because your character is what you really are, while your reputation is merely what others think you are.

There is no refuge from confession but suicide; and suicide is confession.

I am not bound to win, but I am bound to be true. I am not bound to succeed, but I am bound to live by the light that I have. I must stand with anybody that stands right, and stand with him while he is right, and part with him when he goes wrong.

You can't build a reputation on what you are going to do.

You have power over your mind - not outside events. Realize this, and you will find strength.

We could all take a lesson from crayons: some are sharp, some are beautiful, some have weird names, and all are different colors, but they still learn to live in the same box...

Happiness depends more on the inward disposition of mind than on outward circumstances.

You are never too old to become younger!

Be yourself; everyone else is already taken.

It's the possibility of having a dream come true that makes life interesting.

No matter what people tell you, words and ideas can change the world.

Do not be afraid. Do not be satisfied with mediocrity. Put out into the deep and let down your nets for a catch.