A particular face shows determination merely by the turn of the moustache; but the moustache is robbed of all its expression unless it be worn by itself. Accompanied by the other parts of the beard, it loses its originality, it ceases to be a marked characteristic of will or temper. – Charles Blanc, Art in Ornament and Dress, 1875

For a healthy beard, be sure to brush it daily and take it for a walk every evening. – BeardGuru.com

There is always a period when a man with a beard shaves it off. This period does not last. He returns headlong to his beard. – Jean Cocteau (1889–1963), translated from French

But he wore a moustache—a shaggy moustache too: nothing in the meek and merciful way, but quite in the fierce and scornful style: the regular Satanic sort of thing—and he wore, besides, a vast quantity of unbrushed hair. – Charles Dickens, The Life and Adventures of Martin Chuzzlewit, 1843