Great things are not done by impulse, but by a series of small things brought together.

The world is the great gymnasium where we come to make ourselves strong.

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

Self-confidence is the first requisite to great undertakings.

Whatever the mind of man can conceive and believe, it can achieve.

It is our choices...that show what we truly are, far more than our abilities.

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.

Courage is the thing. All goes if courage goes.

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

If the little bit you have is nothing special in itself, at least find a way of saying it that is a little bit special.

The greatest thing in the world is to know how to belong to oneself.

Patience is bitter, but its fruit is sweet.

Imagination will often carry us to worlds that never were, but without it we go nowhere.

I would prefer even to fail with honor than win by cheating.

They deem me mad because I will not sell my days for gold; and I deem them mad because they think my days have a price.

No great discovery was ever made without a bold guess.

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

To see me does not necessarily mean to see my face. To understand my thoughts is to have seen me.

Do not worry about holding high position; worry rather about playing your proper role.

Failure is not our only punishment for laziness; there is also the success of others.

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