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"In the end, we will remember not the words of our enemies, but the silence of our friends."

Remembering that I'll be dead soon is the most important tool I've ever encountered to help me make the big choices in life. Because almost everything - all external expectations, all pride, all fear of embarrassment or failure - these things just fall away in the face of death, leaving only what is truly important.

混凝土是我們時代的大理石，一種民主的材料。

一個好的工程師是能把挫折轉化為靈感的人。