Ability is what you're capable of doing. Motivation determines what you do. Attitude determines how well you do it.

It's the possibility of having a dream come true that makes life interesting.

Do not look for approval except for the consciousness of doing your best.

Be miserable. Or motivate yourself. Whatever has to be done, it's always your choice.

Our patience will achieve more than our force.

For a man who no longer has a homeland, writing becomes a place to live.

I confess that in 1901 I said to my brother Orville that man would not fly for fifty years.

Keep your eyes on the stars, and your feet on the ground.

If my mind can conceive it, and my heart can believe it - then I can achieve it.

Sincerity and truth are the basis of every virtue.

Weakness of attitude becomes weakness of character.

Be the change that you wish to see in the world.

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

The unexamined life is not worth living.

Scar tissue is stronger than regular tissue. Realize the strength, move on.

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

It always seems impossible until it's done.

I'll try anything once, twice if I like it, three times to make sure.

I believe that if you show people the problems and you show them the solutions they will be moved to act.

I long to accomplish a great and noble task; but it is my chief duty to accomplish small tasks as if they were great and noble

Find out who you are and do it on purpose.