The biggest risk in investing is not market risk, but the risk of not being able to meet your financial goals.
遗传密码的发现是理解生命分子基础的一个里程碑。
解释:闭目塞听,不去思考,不登高博览远望的人,和死人是一类的啊!
The nervous system is a dynamic, ever-changing system.
The greatest wisdom is to recognize one's own ignorance.