Cling tight to your sense of humour. You will need it every day. A dry irony is the most useful type, and repartee of a personal and not too broad character will double your influence with the chiefs. Reproof, if wrapped up in some smiling form, will carry further and last longer than the most violent speech. The power of mimicry or parody is valuable, but use it sparingly, for wit is more dignified than humour. Do not cause a laugh at a Sherif except amongst Sherifs.
T.E. Lawrence in his “Twenty-seven Articles,” 1917