Painting, is the choice which the painter makes of the objects that are to enter into the composition of his piece.

Poetry, is applied to whatever the poet adds to the history of the subject he has chosen, as well as to the new turn he gives it.

Rhetoric, signifies the finding out and choosing of certain arguments which the orator is to use for proving or illustrating his point, moving the passions or conciliating the minds of his hearers. Invention, according to Cicero, is the principal part of oratory; and he wrote four books De Inventione, of which we have but two remaining.