Opinions are to the vast apparatus of social existence what oil is to machines: one does not go up to a turbine and pour machine oil over it; one applies a little to hidden spindles and joints that one has to know. ↗
So long as there are earnest believers in the world, they will always wish to punish opinions, even if their judgment tells them it is unwise and their conscience that it is wrong. ↗
Public opinion is a permeating influence, and it exacts obedience to itself; it requires us to drink other men's thoughts, to speak other men's words, to follow other men's habits. ↗
Vanity and pride are different things, though the words are often used synonymously. A person may be proud without being vain. Pride relates more to our opinion of ourselves; vanity, to what we would have others think of us. ↗