Nothing in life is to be feared, it is only to be understood. Now is the time to understand more, so that we may fear less.

Life is 10% what happens to you and 90% how you react to it.

If I have seen further, it is by standing on the shoulders of giants.

吃饭不可不嚼便咽，走路不可不看便走，话不可不考虑便信口乱说，事不可不计划就贸然去做，衣服不能随便就脱，钱财不能随便据为已有，怒气不可不忍而任意发作，朋友不可不加选择地乱交。

Pessimism leads to weakness, optimism to power.