We delight in the beauty of the butterfly, but rarely admit the changes it has gone through to achieve that beauty.

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.

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

I'm sorry I wrote you such a long letter; I didn't have time to write a short one.

Don't find fault, find a remedy; anybody can complain

Question with boldness even the existence of God; because, if there be one, he must more approve of the homage of reason than that of blindfolded fear.

Great spirits have always encountered violent opposition from mediocre minds.

The one excellent thing that can be learned from a lion is that whatever a man intends doing should be done by him with a whole-hearted and strenuous effort.

Some people don't like change, but you need to embrace change if the alternative is disaster.

The world is the great gymnasium where we come to make ourselves strong.

Only when I fall do I get up again.

A man may die, nations may rise and fall, but an idea lives on.

Be the change that you wish to see in the world.

Defeat is not defeat unless accepted as a reality-in your own mind.

No leader can be too far ahead of his followers.

Out of suffering have emerged the strongest souls; the most massive characters are seared with scars.

Listen to many, speak to a few.

The unexamined life is not worth living.

If you can accept losing, you can't win.

In life, you need either inspiration or desperation.

I believe that every person is born with talent.