"History is not a linear path; it spirals, trapping us in its cycles until we confront its ghosts."

思想开阔，才能包容天下的千山万壑；思想谦虚，才能接受天下的真知大德；思想平明，才能纵论天下的善恶得失；思想深沉，才能讨论天下的学说哲理；思想稳定，才能应付天下的风云变幻。

我不喜欢亏钱，所以我试图买入便宜的股票。

The advancement of mathematics is through generalization.