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"The difference between correlation and causation is fundamental in empirical work."

Quality is never an accident; it is always the result of intelligent effort.

Dance like nobody's watching.

少即是乏味。

The more you do, the more you learn. The more you learn, the more you can do.

歷史學家必須與其研究對象有某種親緣關系。死者不會開口，除非你以恰當的方式呼喚他們。

時間沒有分界線來標記它的流逝，從不會有雷暴或號角聲宣告新的月份或年份的開始。