Faith which does not doubt is dead faith.

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.

There is no rational reason to doubt that the universe has existed indefinitely, for an infinite time. It is only myth that attempts to say how the universe came to be, either four thousand or twenty billion years ago.

When in doubt wear red.

As I think through the issue of funding the rebuilding of Iraq, I think about the analogy of a bankruptcy proceeding. There is no doubt that Iraq as a country is bankrupt.

After having dispatched a meal, I went ashore, and found no habitation save a single house, and that without an occupant; we had no doubt that the people had fled in terror at our approach, as the house was completely furnished.

If you would be a real seeker after truth, it is necessary that at least once in your life you doubt, as far as possible, all things.

We criticize, copy, patronize, idolize and insult but we never doubt that the U.S. has a unique position in the history of human hopes.

If you've got talent, stick with it... because talent wins out, without a doubt.

That a great battle must soon be fought no one could doubt; but, in the apparent and perhaps real absence of plan on the part of Lee, it was impossible to foretell the precise scene of the encounter.

I would not be gotten into a schoolhouse until I was eight years old. Nor did I accomplish much after I started. I doubt if I had gone to school six months in all when my father died. I was fourteen at the time.

No doubt Western civilization has in the past been full of wars and revolutions, and the national elements in our culture, even when they were ignored, always provided an unconscious driving force of passion and aggressive self-assertion.