Deep into that darkness peering, long I stood there wondering, fearing, doubting, dreaming dreams no mortal ever dared to dream before.
The best time to plant a tree was 20 years ago; the second best time is now.
我认为最重要的是讲述一个你相信的故事,并用激情和信念来讲述它。
Will you guard your heart against rejection, or will you act when you fall in love?
试管婴儿的未来是使其更简单、更安全、更易于获得。
科学中真正的理解来自于连接看似不相关的点。