Don't wait until everything is just right. It will never be perfect. There will always be challenges, obstacles and less than perfect conditions. So what. Get started now. With each step you take, you will grow stronger and stronger, more and more skilled, more and more self-confident and more and more successful.

我们必须继续推动科学可能性的边界，为了人类的进步。

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。

I never think about the past. I always look forward to the next challenge.

你停止学习的那天就是你停止成长的那天。