聪明人的用法和样例：
例句
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过去的已经过去，且一去不返，而聪明人总是努力着眼于现在和将来的事情，所以对过去耿耿于怀着无非是在捉弄自己罢了。
That which is past is gone, and irrevocable; and wise men have enough to do, with things present and to come; therefore they do but trifle with themselves, that labor in past matters. -
不会在必要的情况下装傻的人，不是聪明人。
He is not a wise man who cannot play the fool upon occasions. -
【谚】聪明人一点即明。
A word to the wise is enough.
