学习是通过修改符号结构来提高性能的过程。

The discovery of the accelerating expansion of the universe was a complete surprise.

宇宙是一个谜题，而化学是其中的一把钥匙。

The universe is full of magical things patiently waiting for our wits to grow sharper.

The process of political decay is as natural as political development.

I believe that if you keep your faith, you keep your trust, you keep the right attitude, if you're grateful, you'll see God open up new doors.

现在是理解过去的钥匙。

The only way to make sense out of change is to plunge into it, move with it, and join the dance.

生命的历史是创新的历史。