It is impossible to trap modern physics into predicting anything with perfect determinism because it deals with probabilities from the outset.

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He was at a starting point which makes many a man's career a fine subject for betting, if there were any gentlemen given to that amusement who could appreciate the complicated probabilities of an arduous purpose, with all the possible thwartings and furtherings of circumstance, all the niceties of inward balance, by which a man swings and makes his point or else is carried headlong.

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The art of drawing conclusions from experiments and observations consists in evaluating probabilities and in estimating whether they are sufficiently great or numerous enough to constitute proofs. This kind of calculation is more complicated and more difficult than it is commonly thought to be. . .

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As for a future life, every man must judge for himself between conflicting vague probabilities

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The moment of enlightenment is when a person's dreams of possibilities become images of probabilities.

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Presumption means nothing more than as stated by Lord Mansfield, the weighing of probabilities, and deciding, by the powers of common sense, on which side the truth is.

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All business proceeds on beliefs, or judgements of probabilities, and not on certainties.

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Ignorance gives one a large range of probabilities.

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