No evil is insupportable but that which is accompanied with consciousness of wrong.

The man who feels himself ignorant should, at least, be modest.

Of all kinds of credulity, the most obstinate is that of party-spirit; of men, who, being numbered, they know not why, in any party, resign the use of their own eyes and ears, and resolve to believe nothing that does not favor those whom they profess to follow.

That friendship may be at once fond and lasting, there must not only be equal virtue on each part, but virtue of the same kind; not only the same end must be proposed, but the same means must be approved by both.

Knowledge is of two kinds. We know a subject ourselves, or we know where we can find information upon it.

There is such a difference between the pursuits of men in great cities that one part of the inhabitants lives to little other purpose than to wonder at the rest. Some have hopes and fears, wishes and aversions, which never enter into the thoughts of others, and inquiry is laboriously exerted to gain that which those who possess it are ready to throw away.

Self-love is often rather arrogant than blind; it does not hide our faults from ourselves, but persuades us that they escape the notice of others.