Know thyself.

Today I shall behave, as if this is the day I will be remembered.

Diligence is the mother of good fortune. And idleness, its opposite, never brought a man to the goal of any of his best wishes.

If the only tool you have is a hammer, you tend to see every problem as a nail.

We travel. Some of us forever. To seek other states, other lives, other souls.

Weakness of attitude becomes weakness of character.

I have a dream that one day little black boys and girls will be holding hands with little white boys and girls.

I think nature's imagination Is so much greater than man's, she's never going to let us relax.

The best way out is always through.

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

If you're not prepared to be wrong, you'll never come up with anything original.

When you're curious, you find lots of interesting things to do.

The desire to reach for the stars is ambitious. The desire to reach hearts is wise.

You'll never do a whole lot unless you're brave enough to try.

Climbing to the top demands strength, whether it is to the top of Mount Everest or to the top of your career.

Don't complain about the snow on your neighbor's roof when your own doorstep is unclean.

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

Change the way you look at things and the things you look at change.

How long should you try? Until.

I discover myself on the verge of a usual mistake.

Every problem is a gift - without problems we would not grow.