However unwillingly a person who has a strong opinion may admit the possibility that his opinion may be false, he ought to be moved by the consideration that, however true it may be, if it is not fully, frequently, and fearlessly discussed, it will be held as a dead dogma, not a living truth.
John Stuart Mill
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THERE is no method of reasoning more common, and yet none more blameable, than, in philosophical disputes, to endeavour the refutation of any hypothesis, by a pretence of its dangerous consequences to religion and morality. When any opinion leads to absurdities, it is certainly false; but it is not certain that an opinion is false, because it is of dangerous consequence. Such topics, therefore, ought entirely to be forborne; as serving nothing to the discovery of truth, but only to make the person of an antagonist odious.
David Hume
If it is true to say of the lazy that they kill time, then it is greatly to be feared that an era which sees its salvation in public opinion, this is to say private laziness, is a time that really will be killed: I mean that it will be struck out of the history of the true liberation of life. How reluctant later generations will be to have anything to do with the relics of an era ruled, not by living men, but by pseudo-men dominated by public opinion.
Friedrich Nietzsche
There is the greatest difference between presuming an opinion to be true, because, with every opportunity for contesting it, it has not been refuted, and assuming its truth for the purpose of not permitting its refutation. Complete liberty of contradicting and disproving our opinion is the very condition which justifies us in assuming its truth for purposes of action; and on no other terms can a being with human faculties have any rational assurance of being right. (pp. 26-27)
John Stuart Mill
The very attempt to determine the relationship of a philosophical work to other efforts concerning the same subject, introduces an alien and irrelevant interest which obscures precisely that which matters for the recognition of the truth. Opinion considers the opposition of what is true and false quite rigid, and, confronted with a philosophical system, it expects agreement or contradiction. And in an explanation of such a system, opinion still expects to find one or the other. It does not comprehend the difference of the philosophical systems in terms of the progressive development of the truth, but sees only the contradiction in this difference. The bud disappears as the blossom bursts forth, and one could say that the former is refuted by the latter. In the same way, the fruit declares the blossom to be a false existence of the plant. These forms do not only differ, they also displace each other because they are incompatible. Their fluid nature, however, makes them, at the same time, elements of an organic unity in which they not only do not conflict, but in which one is as necessary as the other; and it is only this equal necessity that constitutes the life of the whole.
Georg Wilhelm Friedrich Hegel
The peculiar evil of silencing the expression of an opinion is, that it is robbing the human race; posterity as well as the existing generation; those who dissent from the opinion, still more than those who hold it. If the opinion is right, they are deprived of the opportunity of exchanging error for truth: if wrong, they lose, what is almost as great a benefit, the clearer perception and livelier impression of truth, produced by its collision with error.
John Stuart Mill
Mill, John Stuart
Millar, Fergus
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