写作的行为是对遗忘的抵抗行为。
The mathematician's best work is art, a high perfect art, as daring as the most secret dreams of imagination, clear and limpid.
礼貌,并不需要花钱。用完马桶后,把马桶盖放下;上电梯时,耐心等别人出来再进去;把购物车放回指定区域;在借东西时,归还时要东西的状态要比你借的时候还要好(例如给车加满油、把物品清理干净)。