我已经注意到有爬山习惯的年轻人长大后通常有所作为。
I have noticed that youngsters given to the climbing habit usually do something when they grow up.
I wanted to discover myself, the reason I was born, and the meaning of life.
The beauty of science lies in its ability to explain the natural world.
人声是最美的乐器,但也是最难演奏的。