Whatever you are, be a good one.

Strength of mind rests in sobriety; for this keeps your reason unclouded by passion.

The secret of genius is to carry the spirit of the child into old age, which means never losing your enthusiasm.

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

Every problem has in it the seeds of its own solution. If you don't have any problems, you don't get any seeds.

You lose nothing when fighting for a cause ... In my mind the losers are those who don't have a cause they care about.

You see things; you say, 'Why?' But I dream things that never were; and I say 'Why not?

When you arise in the morning think of what a privilege it is to be alive, to think, to enjoy, to love ...

Courage is the thing. All goes if courage goes.

Perseverance and spirit have done wonders in all ages.

The way to become rich is to put all your eggs in one basket and then watch that basket.

The only way to make sense out of change is to plunge into it, move with it and join the dance.

For every man there exists a bait which he cannot resist swallowing.

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

If you want a thing done well, do it yourself.

Nothing is impossible, the word itself says 'I am possible'

If you spend too much time thinking about a thing, you'll never get it done.

We are citizens of the world. The tragedy of our times is that we do not know this.

I can be changed by what happens to me. But I refuse to be reduced by it.

One person with a belief is equal to a force of ninety-nine who have only interests.

It is better to light one small candle than to curse the darkness.