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The mathematician's patterns, like the painter's or the poet's, must be beautiful; the ideas, like the colors or the words, must fit together in a harmonious way.
Wise men talk because they have something to say; fools, because they have to say something.
The person who has lived the most is not the one with the most years but the one with the richest experiences.
俄罗斯法律的严厉性因缺乏强制执行的义务而得到缓和。
Sustainability isn't an option; it's a necessity for the survival of our industry.