Be yourself; everyone else is already taken.

Your success and happiness lies in you. Resolve to keep happy, and your joy and you shall form an invincible host against difficulties.

I am the lizard king. I can do anything.

I am not what happened to me, I am what I choose to become.

In winter, I plot and plan. In spring, I move.

I am as bad as the worst, but, thank God, I am as good as the best.

Live as if you were to die tomorrow. Learn as if you were to live forever.

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

We do not consider our principles as dogmas contained in books said to come from heaven. We derive our inspiration, not from heaven, or the unseen world, but directly from life.

Anyone who stops learning is old, whether at twenty or eighty. Anyone who keeps learning stays young.

The fact that the great scientist believed in flying machines was the one thing that encouraged us to begin our studies.

The best way out is always through.

Storms make trees take deeper roots.

When I was in college, I wanted to be involved in things that would change the world.

Never stand begging for what one has the power to earn.

You are never too old to become younger!

You must find the place inside yourself where nothing is impossible.

Find out who you are. And do it on purpose.

Whatever the mind of man can conceive and believe, it can achieve.

I can never stand still. I must explore and experiment. I am never satisfied with my work. I resent the limitations of my own imagination.

Effort only fully releases its reward after a person refuses to quit.