I don't believe in luck. I believe in hard work.
革命道德不是从天上掉下来的。它是在日常斗争中培养,在革命活动中锤炼的。
你必须对自己的能力有信心,然后足够坚强地坚持到底。
The molecules that mediate pain are ancient, revealing how deeply rooted this sensation is in evolution.