Be happy, but never satisfied.

The more you lose yourself in something bigger than yourself, the more energy you will have.

Whatever you are, be a good one.

Don't wish it were easier, wish you were better.

Whatever you do will be insignificant, but it is very important that you do it.

Find out who you are. And do it on purpose.

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

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.

My optimism wears heavy boots and is loud.

Sincerity and truth are the basis of every virtue.

A liar will not be believed even when he speaks the truth.

When every physical and mental resource is focused, one's power to solve a problem multiplies tremendously.

The people who were trying to make this world worse are not taking the day off. Why should I?

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

Any book that helps a child to form a habit of reading, to make reading one of his deep and continuing needs, is good for him.

I seldom end up where I wanted to go, but almost always end up where I need to be.

In a conflict between the heart and the brain, follow your heart.

Waste no more time arguing about what a good man should be. Be one.

The expectations of life depend upon diligence; the mechanic that would perfect his work must first sharpen his tools.

No leader can be too far ahead of his followers.

Start by doing what is necessary, then what is possible, and suddenly you are doing the impossible.