Authors:

Sleep not when others speak, sit not when others stand, speak not when you should hold your peace, walk not when others stop.

George Washington, Jared Sparks (1834). “The Writings of George Washington: Being His Correspondence, Addresses, Messages, and Other Papers, Official and Private, Selected and Published from the Original Manuscripts”, p.412
Sleep not when others speak, sit not when others stand, speak not when you should hold your peace, walk not when others stop.