certainty

A Quote by Blaise Pascal on certainty, time, and worry

We do not worry about being respected in towns through which we pass. But if we are going to remain in one for a certain time, we do worry. How long does this time have to be?

Blaise Pascal (1623 - 1662)

Source: W. H. Auden and L. Kronenberger (eds.) The Viking Book of Aphorisms, New York: Viking Press, 1966.

Contributed by: Zaady

A Quote by Billie Jean King on achievement, attitude, certainty, driving, relaxation, trouble, and world

The trouble with being number one in the world - in anything - is that it takes a certain mentality to attain that position, and that is something of a driving, perfectionist attitude, so that once you do achieve number one, you don't relax and enjoy it.

Billie Jean King (1943 -)

Source: Billie Jean, 1982.

Contributed by: Zaady

A Quote by Bhagavad-Gita on birth, certainty, and death

For certain is death for the born And certain is birth for the dead; Therefore over the inevitableBhagavad-gïtä Thou shouldst not grieve.

Bhagavad-Gita

Source: The Bhagavad-Gita: Chapter 2

Contributed by: Zaady

A Quote by Bertrand Arthur William Russell on certainty, giving, habits, suffering, and world

A habit of basing convictions upon evidence, and of giving to them only that degree or certainty which the evidence warrants, would, if it became general, cure most of the ills from which the world suffers.

Bertrand Russell (1872 - 1970)

Source: G. Simmons Calculus Gems, New York: McGraw Hill Inc., 1992.

Contributed by: Zaady

A Quote by Bertrand Arthur William Russell on certainty, clarity, duty, preparation, purity, work, and world

A sense of duty is useful in work but offensive in personal relations. Certain characteristics of the subject are clear. To begin with, we do not, in this subject, deal with particular things or particular properties: we deal formally with what can be said about "any" thing or "any" property. We are prepared to say that one and one are two, but not that Socrates and Plato are two, because, in our capacity of logicians or pure mathematicians, we have never heard of Socrates or Plato. A world in which there were no such individuals would still be a world in which one and one are two. It is not open to us, as pure mathematicians or logicians, to mention anything at all, because, if we do so we introduce something irrelevant and not formal.

Bertrand Russell (1872 - 1970)

Source: J. R. Newman (ed.) The World of Mathematics, New York: Simon and Schuster, 1956.

Contributed by: Zaady

A Quote by Bertrand Arthur William Russell on certainty, knowledge, and men

What men really want is not knowledge but certainty.

Bertrand Russell (1872 - 1970)

Contributed by: Zaady

A Quote by Bertrand Arthur William Russell on acceptance, certainty, discovery, expectation, faith, kindness, knowledge, mathematics, people, religion, rest, security, teachers, thought, work, and world

I wanted certainty in the kind of way in which people want religious faith. I thought that certainty is more likely to be found in mathematics than elsewhere. But I discovered that many mathematical demonstrations, which my teachers expected me to accept, were full of fallacies, and that, if certainty were indeed discoverable in mathematics, it would be in a new field of mathematics, with more solid foundations than those that had hitherto been thought secure. But as the work proceeded, I was continually reminded of the fable about the elephant and the tortoise. having constructed an elephant upon which the mathematical world could rest, I found the elephant tottering, and proceeded to construct a tortoise to keep the elephant from falling. But the tortoise was no more secure than the elephant, and after some twenty years of very arduous toil, I came to the conclusion that there was nothing more that I could do in the way of making mathematical knowledge indubitable.

Bertrand Russell (1872 - 1970)

Source: Portraits from Memory.

Contributed by: Zaady

A Quote by Bertrand Arthur William Russell on animals, argument, belief, certainty, dogs, life, and plants

"But," you might say, "none of this shakes my belief that 2 and 2 are 4." You are quite right, except in marginal cases - and it is only in marginal cases that you are doubtful whether a certain animal is a dog or a certain length is less than a meter. Two must be two of something, and the proposition "2 and 2 are 4" is useless unless it can be applied. Two dogs and two dogs are certainly four dogs, but cases arise in which you are doubtful whether two of them are dogs. "Well, at any rate there are four animals," you may say. But there are microorganisms concerning which it is doubtful whether they are animals or plants. "Well, then living organisms," you say. But there are things of which it is doubtful whether they are living organisms or not. You will be driven into saying: "Two entities and two entities are four entities." When you have told me what you mean by "entity," we will resume the argument.

Bertrand Russell (1872 - 1970)

Source: N. Rose Mathematical Maxims and Minims, Raleigh NC:Rome Press Inc., 1988.

Contributed by: Zaady

A Quote by Bertrand Arthur William Russell on certainty, evil, facts, feeling, and people

Most of the greatest evils that man has inflicted upon man have come through people feeling quite certain about something which, in fact, was false.

Bertrand Russell (1872 - 1970)

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A Quote by Bertrand Arthur William Russell on certainty, clarity, and preparation

1. Generality Certain characteristics of the subject are clear. To begin with, we do not in this subject deal with particular things or particular properties: we deal formally with what can be said about any thing or any property. We are prepared to say that one and one are two, but not that Socrates and Plato are two. . . .

Bertrand Russell (1872 - 1970)

Source: Chapter XVIII of Introduction to Mathematical Philosophy, Russell

Contributed by: Zaady

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