Philosophy goes no further than probabilities, and in every assertion keeps a doubt in reserve.

The secret of a person's nature lies in their religion and what they really believes about the world and their place in it.

The endurance of the inequalities of life by the poor is the marvel of human society.

The better one is morally the less aware they are of their virtue.

The first duty of an historian is to be on guard against his own sympathies.

Wild animals never kill for sport. Man is the only one to whom the torture and death of his fellow creatures is amusing in itself.

A person possessed with an idea cannot be reasoned with.

Superior strength is found in the long run to lie with those who had right on their side.

The practical effect of a belief is the real test of its soundness.

Science rests on reason and experiment, and can meet an opponent with calmness; but a belief is always sensitive.

Age does not make us childish, as some say; it finds us true children.

As we advance in life, we learn the limits of our abilities.

Philosophy goes no further than probabilities, and in every assertion keeps a doubt in reserve.

We enter the world alone, we leave the world alone.

The essence of greatness is neglect of the self.

Experience teaches slowly, and at the cost of mistakes.

You cannot dream yourself into a character; you must hammer and forge yourself one.

To deny the freedom of the will is to make morality impossible.

Fear is the parent of cruelty.

In everyday things the law of sacrifice takes the form of positive duty.

No person is ever good for much, that hasn't been swept off their feet by enthusiasm between ages twenty and thirty.

Instruction does not prevent wasted time or mistakes; and mistakes themselves are often the best teachers of all.

Human improvement is from within outward.

Experience teaches slowly and at the cost of mistakes.

Ignorance is the dominion of absurdity.

The solitary side of our nature demands leisure for reflection upon subjects on which the dash and whirl of daily business, so long as its clouds rise thick about us, forbid the intellect to fasten itself.

Wild animals never kill for sport. Man is the only one to whom the torture and death of his fellow creatures is amusing.

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.

You have to not listen to the nay sayers because there will be many and often they'll be much more qualified than you and cause you to sort of doubt yourself.

It has since been agreed that speeches given in English will be translated into French and vice versa, and even into German and Italian when necessary. No doubt translations into Esperanto will also soon be in demand.

Who has suffered? The families of the dead, no doubt. But a greater loss was inflicted on Pakistan because, as I said, we lost the pillars of our society.

I find that the best way to do things is to constantly move forward and to never doubt anything and keep moving forward, if you make a mistake say you made a mistake.

I know that we're being inexorably taken over by the Americans. Without a doubt. I don't mean invaded or anything like that, just taken over. By degrees.

My esoteric doctrine, is that if you entertain any doubt, it is safest to take the unpopular side in the first instance. Transit from the unpopular, is easy... but from the popular to the unpopular is so steep and rugged that it is impossible to maintain it.

What matters to us, the judgment of men? What have we to doubt, since we are pure before life?

Doubt is part of all religion. All the religious thinkers were doubters.

Should doubt knock at your doorway, just say to those skeptical, disturbing, rebellious thoughts, I propose to stay with my faith, with the faith of my people.

When in doubt, take more time.

The road to perseverance lies by doubt.

It's a technical, fairly difficult job that has no particular political connotations, so I doubt there are any big campaign contributors dying to be on the Fed. And remember, it doesn't pay very well, certainly by Republican standards.