A problem well stated is a problem half solved.
问题陈述得好,问题就解决了一半。
The deeper you go into mathematics, the more you realize how much remains unknown.
风格既存在于字里行间,也潜藏在文字之下。它既是作品的灵魂,也是作品的肉体。
预测未来的最好方法就是创造未来。