You need a little bit of insanity to do great things.

Great work requires great and persistent effort for a long time. … Character has to be established through a thousand stumbles.

Courage isn't having the strength to go on - it is going on when you don't have strength.

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

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

Your talent determines what you can do. Your motivation determines how much you are willing to do. Your attitude determines how well you do it.

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

First they ignore you, then they ridicule you, then they fight you, and then you win.

Insanity is doing the same thing over and over again and expecting different results.

I work hard, and I do good, and I'm going to enjoy myself. I'm not going to let you restrict me.

People die from typewriters falling on their heads.

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...

Our life is what our thoughts make it.

I confess that in 1901 I said to my brother Orville that man would not fly for fifty years.

We are all in the gutter, but some of us are looking at the stars.

Everything you can imagine is real.

Stand up to your obstacles and do something about them. You will find that they haven't half the strength you think they have.

What does not destroy me, makes me strong.

Anything that makes weak - physically, intellectually and spiritually, reject it as poison.

You don't need a weather man to know which way the wind blows

Only in the darkness, you are able to see the stars.