It is human nature to hate him whom you have injured.

You cannot discover new lands without consenting to lose sight of the shore for a very long time.

We are continually faced with great opportunities brilliantly disguised as unsolvable problems.

We aren't afraid of failure. On the contrary, we expect it. If you don't fail every once in a while you haven't really challenged yourself. The greatest advances have always been made under pressure and strain.

A bad day for your ego is a great day for your soul.

Get your facts first, then you can distort them as you please.

When everything seems to be going against you, remember that the airplane takes off against the wind, not with it.

If you need a machine and don't buy it, then you will ultimately find that you have paid for it and don't have it.

Rudeness is the weak man's imitation of strength.

American racecar driver Donahue, to his new chief mechanic; ‘Remove the reverse gear please.’ Chief mechanic: ‘But what if you spin and are facing the guardrail?’ Donahue: ‘Porsche doesn't pay me to drive in reverse…’

It has our name on it, so we are concerned to be sure it is going to be right.

Be confident, not certain.

Authenticity is the journey of figuring out who you are through what you make.

Life does not cease to be funny when people die any more than it ceases to be serious when people laugh.

Normality is a paved road; it's comfortable to walk, but no flowers grow on it.

Give me six hours to chop down a tree and I will spend the first four sharpening the axe.

I have made this (letter) longer than usual because I have not had time to make it shorter.

It is better to offer no excuse than a bad one.

The one thing that a nationalist loves above all else is his grievance.

I do not think much of a man who is not wiser today than he was yesterday.

Eloquence is logic on fire.

I'll tell you what leadership is: it's persuasion, and conciliation, and education, and patience. It's long, slow, tough work.

He who knows only his side of the case knows little of that.

By failing to prepare, you are preparing to fail.

In the beginner's mind there are many possibilities, but in the expert's, there are few.

A wise man once said nothin' at all.

Not knowing what one is doing is no prohibition on doing it.

It is better to prepare children than to repair them.

Bravery is to defend yourself from another, and humanity is to defend the other from yourself.

Everything that irritates us about others can lead us to an understanding of ourselves.

Those who make peaceful revolution impossible will make violent revolution inevitable.

It is a sign of great inner insecurity to be hostile to the unfamiliar.

Be regular and orderly in your life so you may be violent and original in your work.

Whether you think you can, or whether you think you can't, you're right.

One thing a person cannot do, no matter how rigorous his analysis or heroic his imagination, is to draw up a list of things that would never occur to him.

Tradition is tending the flame, not worshiping the ashes.

Never stand between a dog and a lamp post.

Travel is fatal to prejudice, bigotry, and narrow-mindedness.

It doesn't make sense to hire smart people and then tell them what to do: we hire smart people so they can tell us what to do.

Weakness is provocative.

A great nation ought not to be a hammer, but a magnet.

Truth is confirmed by inspection and delay; falsehood by haste and uncertainty.

Fear is that little dark room where negatives are developed.

If the facts are against you, argue the law. If the law is against you, argue the facts. If the law and the facts are against you, pound the table and yell like hell.

Every great cause begins as a movement, becomes a business, and eventually degenerates into a racket.

Fight for the things that you care about. But do it in a way that will lead others to join you.

Insanity is relative. It depends on who has who locked in what cage.