In order to judge of the inside of others, study your own; for men in general are very much alike; and though one has one prevailing passion, and another has another, yet their operations are much the same; and whatever engages or disgusts, pleases or offends you, in others, will, mutatis mutandis, engage, disgust, please, or offend others, in you.
Lord ChesterfieldRemember, as long as you live, that nothing but strict truth can carry you through the world, with either your conscience or your honor unwounded.
Lord ChesterfieldThe heart never grows better by age; I fear rather worse, always harder. A young liar will be an old one, and a young knave will only be a greater knave as he grows older.
Lord Chesterfield