種一棵樹最好的時間是20年前，其次是現在。
對正確的需要，是我們庸俗思想的標志。
我不是一個放棄真相的人。
The best literature is that which makes us uncomfortable, which disturbs our sleep.
Program testing can be used to show the presence of bugs, but never to show their absence!
世界充滿了神奇的東西，它們在耐心地等待我們變得更有智慧。