那是一种内在的东西，他们到达不了，也无法触及的，那是你的。
These are something inside,that they can't get to ,that they can't touch,That's yours.
Learning makes a man fit company for himself.
引力波的发现为宇宙打开了一扇新的窗户。
Deep learning is a powerful tool for solving complex problems.
缺乏一个强大的国家对自由的威胁比存在一个强大的国家更大。