Anyone who in discussion relies upon authority uses, not his understanding, but rather his memory.

If a person never contradicts himself, it must be that he says nothing.

It is truer to say that martyrs create faith more than faith creates martyrs.

A man does not die of love or his liver or even of old age; he dies of being a man.

Only in solitude do we find ourselves; and in finding ourselves, we find in ourselves all our brothers in solitude.

Science is a cemetery of dead ideas.

What we believe to be the motives of our conduct are usually but the pretexts for it.

We need God, not in order to understand the why, but in order to feel and sustain the ultimate wherefore, to give a meaning to the universe.

To love with the spirit is to pity, and he who pities most loves most.

It is sad not to love, but it is much sadder not to be able to love.

Suffering is the substance of life and the root of personality, for it is only suffering that makes us persons.

If it is nothingness that awaits us, let us make an injustice of it; let us fight against destiny, even though without hope of victory.

Art distills sensations and embodies it with enhanced meaning.

True science teaches, above all, to doubt and to be ignorant.

A lot of good arguments are spoiled by some fool who knows what he is talking about.

Life is doubt, and faith without doubt is nothing but death.

Your neighbor's vision is as true for him as your own vision is true for you.

The skeptic does not mean him who doubts, but him who investigates or researches, as opposed to him who asserts and thinks that he has found.

The only way to give finality to the world is to give it consciousness.

That which the Fascists hate above all else, is intelligence.

The greatest height of heroism to which an individual, like a people, can attain is to know how to face ridicule.

There is no true love save in suffering, and in this world we have to choose either love, which is suffering, or happiness. Man is the more man - that is, the more divine - the greater his capacity for suffering, or rather, for anguish.

To fall into a habit is to begin to cease to be.

Faith which does not doubt is dead faith.

Consciousness is a disease.

Some people will believe anything if you whisper it to them.

Anyone who in discussion relies upon authority uses, not his understanding, but rather his memory.

Human beliefs, like all other natural growths, elude the barrier of systems.

Cure yourself of the affliction of caring how you appear to others. Concern yourself only with how you appear before God, concern yourself only with the idea that God may have of you.

We never know, believe me, when we have succeeded best.

Love is the child of illusion and the parent of disillusion.

Man dies of cold, not of darkness.

Cure yourself of the affliction of caring how you appear to others. Concern yourself only with how you appear before God Concern yourself only with the idea that God may have of you

Chemistry ought to be not for chemists alone.

Man dies of cold not of darkness.

The pessimism that protests and defends itself cannot be truly said to be pessimism.

The satisfied, the happy, do not live; they fall asleep in habit, near neighbor to annihilation.

Science is a cemetery of dead ideas

The skeptic dows not mean him who doubts, but him who investigates or researches, as opposed to him who asserts and thinks that he has found.

The burnt odor in Washington is from the disintegrating authority of the governing classes.

If you look to lead, invest at least 40% of your time managing yourself - your ethics, character, principles, purpose, motivation, and conduct. Invest at least 30% managing those with authority over you, and 15% managing your peers.

All wars come to an end, at least temporarily. But the authority acquired by the state hangs on; political power never abdicates.

Anyone who conducts an argument by appealing to authority is not using his intelligence; he is just using his memory.

I call religion a natural authority, but it has usually been conceived as a supernatural authority.

But in our age the appeal to authority is weak, and I am of my age.

And revolutions always mean the breakdown of old authority.

In revolutions authority remains with the greatest scoundrels.

We all agree that we've got to bring these terrorists to justice and to make sure that they're never allowed to perpetrate such an evil act as they did. And so all of us are dealing with that. We know that the President has the authority to go to war under the War Powers Act.

The faith that stands on authority is not faith.