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改變是不可避免的，但成長是可選的。

保持你的圈子小而夢想大。

當你借用別人的車時，歸還時總要加滿油。

我思故我在已被廢棄；我們應說，我感受故我在。

The end of history will be a very sad time. The struggle for recognition, the willingness to risk one's life for a purely abstract goal, the worldwide ideological struggle that called forth daring, courage, imagination, and idealism, will be replaced by economic calculation, the endless solving of technical problems, environmental concerns, and the satisfaction of sophisticated consumer demands.

"Randomized experiments are the gold standard for causal inference, but they are not always feasible."

2001：貝索斯致股東信《我們始終堅持現金流為王》