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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