The fact that an opinion has been widely held is no evidence whatever that it is not utterly absurd; indeed, read more

The fact that an opinion has been widely held is no evidence whatever that it is not utterly absurd; indeed, in view of the silliness of the majority of mankind, a wide-spread belief is more likely to be foolish than sensible

The peculiar evil of silencing the expression of an opinion is that it is robbing the human race; posterity as read more

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.

It requires ages to destroy a popular opinion

It requires ages to destroy a popular opinion

One accurate measurement is worth a thousand expert opinions.

One accurate measurement is worth a thousand expert opinions.

If a man isn't willing to take some risk for his opinions, either his opinions are no good or he's read more

If a man isn't willing to take some risk for his opinions, either his opinions are no good or he's no good

For having lived long, I have experienced many instances of being obliged, by better information or fuller consideration, to change read more

For having lived long, I have experienced many instances of being obliged, by better information or fuller consideration, to change opinions, even on important subjects, which I once thought right but found to be otherwise.

A yawn may not be polite, but at least it is an honest opinion

A yawn may not be polite, but at least it is an honest opinion

We should be eternally vigilant against attempts to check the expression of opinions that we loathe.

We should be eternally vigilant against attempts to check the expression of opinions that we loathe.

Opinions have vested interests just as men have.

Opinions have vested interests just as men have.