PERCEPTION OF CHARACTER.--Search, therefore, with the greatest care into the characters of all those whom you converse with; endeavor to discover their predominant passions, their prevailing weaknesses, their vanities, their follies, and their humors; with all the right and wrong, wise and silly springs of human actions, which make such inconsistent and whimsical beings of us rational creatures. A moderate share of penetration, with great attention, will infallibly make these necessary discoveries. This is the true knowledge of the world; and the world is a country which nobody ever yet knew by description; one must travel through it one’s self to be acquainted with it. The scholar, who in the dust of his closet talks or writes of the world, knows no more of it than that orator did of war, who judiciously endeavored to instruct Hannibal in it. Courts and camps are the only places to learn the world in. [_Oct. 2, 1747._] GOOD BREEDING.--Civility, which is a disposition to accommodate and oblige others, is essentially the same in every country; but good breeding, as it is called, which is the manner of exerting that disposition, is different in almost every country, and merely local; and every man of sense imitates and conforms to that local good breeding of the place which he is at. A conformity and flexibility of manners is necessary in the course of the world; that is, with regard to all things which are not wrong in themselves. The _versatile ingenium_ is the most useful of all. It can turn itself instantly from one object to another, assuming the proper manner for each. It can be serious with the grave, cheerful with the gay, and trifling with the frivolous. Endeavor, by all means, to accommodate this talent, for it is a very great one. [_Same date._]