何思何虑,居心当如止水;勿取勿忘,为学当如流水。
无思无虑,心境应当平静如水;不求冒进也不忘记,学业当如流水一般永无止境。
The only limit to our realization of tomorrow will be our doubts of today.
时间是你的朋友;冲动是你的敌人。
你承受的痛苦越多,就越能享受成功的喜悦。
Scientific research should solve practical problems, not just stay on papers.