Never let the future disturb you. You will meet it, if you have to, with the same weapons of reason which today arm you against the present.

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

First ask yourself: What is the worst that can happen? Then prepare to accept it. Then proceed to improve on the worst.

Alone we can do so little; together we can do so much.

To succeed in your mission, you must have single-minded devotion to your goal.

My optimism wears heavy boots and is loud.

The way I see it, if you want the rainbow, you gotta put up with the rain.

You must never be fearful about what you are doing when it is right.

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

A lot of people have gone further than they thought they could because someone else thought they could

Crave for a thing, you will get it. Renounce the craving, the object will follow you by itself.

To attain the impossible, one must attempt the absurd.

People die from typewriters falling on their heads.

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

People who are unable to motivate themselves must be content with mediocrity, no matter how impressive their other talents.

No one is free who has not obtained the empire of himself. No man is free who cannot command himself.

A goal is not always meant to be reached, it often serves simply as something to aim at.

The best way to find yourself is to lose yourself in the service of others.

Man needs his difficulties because they are necessary to enjoy success.

You are never too old to become younger!

Perseverance and spirit have done wonders in all ages.