Noise isn’t authority, and there’s no sense in ripping and roaring and cussing around the office when things don’t please you. For when a fellow’s given to that, his men secretly won’t care a cuss whether he’s pleased or not. They’ll jump when he speaks, because they value their heads, not his good opinion. […] One of the first things a boss must lose is his temper — and it must stay lost. […] The world is full of fellows who could take the energy which they put into useless cussing of their men, and double their business with it.

George Horace Lorimer (1867–1937) American journalist, author, magazine editor

Old Gorgon Graham: More Letters from a Self-Made Merchant to His Son, ch. 12 (1903)
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