Tact is the art of making a point without making an enemy.
--
Actually a statement by American advertising executive and author Howard W. Newton (1903 - 1951).Isaac Newton
In large-scale strategy you can frighten the enemy not by what you present to their eyes, but by shouting, making a small force seem large, or by threatening them from the flank without warning. These things all frighten. You can win by making best use of the enemy's frightened rhythm.
Miyamoto Musashi
Life is full of decisions and judgments and guesses, and it gets to the point where you're so accustomed to making them you keep right on making them even when you don't strictly need to. You get into a what if thing, and you start speculating about what you would do if some problem was yours instead of somebody else's. It gets to be a habit. It was a habit Jack Reacher had in spades.
Lee Child
Never interrupt your enemy when he is making a mistake.
Napoleon Bonaparte
There are very many characteristics which go into making a model civil servant. Prominent among them are probity, industry, good sense, good habits, good temper, patience, order, courtesy, tact, self-reliance, many deference to superior officers, and many consideration for inferiors.
Chester A. Arthur
A weapon is a device for making your enemy change his mind.
Lois McMaster Bujold
Newton, Isaac
Newton, John
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