There is no conversation more boring than the one where everybody agrees.

Silence is one of the hardest arguments to refute.

Never cross a man, not afraid to die.

It never ceases to amaze me: we all love ourselves more than others their opinions more than other people, but care more about their opinion than our own.

Tact is the knack of making a point without making an enemy.

Can anything be more ridiculous than that a man should have the right to kill me because he lives on the other side of the water, and because his ruler has a quarrel with mine, though I have none with him?

Those who enjoy responsibility usually get it; those who merely enjoy exercising authority usually lose it.

Next to the assumption of power is the responsibility of relinquishing it.

In a word, each man is questioned by life; and he can only answer to life by answering for his own life; to life he can only respond by being responsible.

Hold yourself responsible for a higher standard than anybody expects of you. Never excuse yourself.

Man must cease attributing his problems to his environment, and learn again to exercise his will - his personal responsibility in the realm of faith and morals.

Never trouble another for what you can do for yourself.

I have noticed that even those who assert that everything is predestined and that we can change nothing about it still look both ways before they cross the street.

We know of no culture that has said, articulately, that there is no difference between men and women except in the way they contribute to the creation of the next generation.

The resources, advantages, and the powers of the American people are very great, and they have, consequently, succeed to equally great responsibilities.

The spirit of self-help is the root of all genuine growth in the individual; and, exhibited in the lives of many, it continues the true source of national vigor and strength. Help from without is often enfeebling in its effects, but help from within invariably invigorates.

We all walk in the dark and each of us must learn to turn on his or her own light.

An hour of planning can say you 10 hours of doing.

Do not stop thinking of life as an adventure. You have no security unless you live bravely, excitingly, imaginatively.

A man is as big as the measure of his thinking.

One of the greatest pains to human nature is the pain of a new idea.

Two percent of the people think; three percent of the people think they think; and ninety-five percent of the people would rather die than think.

Men show their characters in nothing more clearly than in what they think laughable.

When we are tired, we are attacked by ideas we conquered long ago.

The way you habitually think will determine your destiny.

The surest way to corrupt a youth is to instruct him to hold in higher esteem those who think alike than those who think differently.