A liar ought to have a good memory.
One should aim not at being possible to understand, but at being impossible to misunderstand.
The gifts of nature are infinite in their variety, and mind differs from mind almost as much as body from body.
The pretended admission of a fault on our part creates an excellent impression.
The perfection of art is to conceal art.
There is no one who would not rather appear to know than to be taught.