Men are not to be judged by what they do not know, but by what they know, and by the manner in which they know it.

It is easy to criticize an author, but difficult to appreciate him.

Persons of rank do not talk about such trifles as the common people do; but the common people do not busy themselves about such frivolous things as do persons of rank.

In a way, the main fault of all books is that they are too long.

Few people are modest enough to be estimated at their true worth.

There are men who are happy without knowing it.

There does not exist a man sufficiently intelligent never to be tiresome.