Anything that causes you to overreact or underreact can control you, and often does. Responding inappropriately to your e-mail, your thoughts about what you need to do, your children, or your boss will lead to less effective results than you'd like. Most people give either more or less attention to things than they deserve, simply because they don't operate with a mind like water.
( David Allen )
[ Getting Things Done: The Art ]
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