You can discover what your enemy fears most by observing the means he uses to frighten you.

If you lose hope, somehow you lose the vitality that keeps life moving, you lose that courage to be, that quality that helps you go on in spite of it all. And so today I still have a dream.

Scientists were rated as great heretics by the church, but they were truly religious men because of their faith in the orderliness of the universe.

Give me six hours to chop down a tree and I will spend the first four sharpening the axe.

In the End, we will remember not the words of our enemies, but the silence of our friends.

It is a miracle that curiosity survives formal education.

I find that the harder I work, the more luck I seem to have.

Continuous effort - not strength or intelligence - is the key to unlocking our potential.

We should be taught not to wait for inspiration to start a thing. Action always generates inspiration. Inspiration seldom generates action.

Only passions, great passions, can elevate the soul to great things.