'Multitude, solitude: identical terms'

It is not given to every man to take a bath of multitude; enjoying a crowd is an art; and only he can relish a debauch of vitality at the expense of the human species, on whom, in his cradle, a fairy has bestowed the love of masks and masquerading, the hate of home, and the passion for roaming.

Multitude, solitude: identical terms, and interchangeable by the active and fertile poet. The man who is unable to people his solitude is equally unable to be alone in a bustling crowd.

—Charles Baudelaire, "Crowds," Paris Spleen (1869) (trans. Louise Varèse 1947)