过去总是紧张的，未来是完美的。
The more we learn, the more we realize how little we know.
唱歌的人不求声音高尖而求合乎节拍，评论者不追求华丽的辞藻而注重所谈论的事情符合实际。
The more you know, the more you can imagine. The more you imagine, the more you can know.
