The opinions that are held with passion are always those for which no good ground exists; indeed the passion is the measure of the holder’s lack of rational conviction. Opinions in politics and religion are almost always held passionately.
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 widespread belief is more likely to be foolish than sensible.
Freedom of opinion can only exist when the government thinks itself secure.
Do not fear to be eccentric in opinion, for every opinion now accepted was once eccentric.
Any of us confronted by a forgotten letter written some years ago will be astonished to find how much more foolish our opinions were than we had remembered them as being.