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大自然賦予我形體使我負載，賦予我生命使我勞碌，使我變老以得到安閑，使我死亡以得到安息。所以能把活著當作好事，也就能把死去當作好事了。

P與NP問題是計算機科學中最重要的未解決問題之一。

如果我們對待植物像對待孩子一樣漫不經心，我們現在就會生活在雜草叢生的叢林里。

俄羅斯的命運寫在它農民的臉上。

The best discoveries are those that raise more questions than they answer.

Emancipate yourselves from mental slavery, none but ourselves can free our minds.

What you actually pay for something is at least twice the listed price because of the energy， time， money needed to set it up， learn， maintain， repair， and dispose of at the end. Not all prices appear on labels. Actual costs are 2x listed prices.