自由不是选择黑白，而是放弃这种规定的选择。

The best time to plant a tree was twenty years ago. The second best time is now.

在生活和音乐中你都必须冒险。

The novel is a mirror that reflects the complexities of human existence.

椭圆曲线的算术是数论中更深层结构的一个缩影。