如果你确信自己走在正确的道路上，并且内心深知这一点，那么无论别人说什么，都无法让你动摇。

International politics is a brutal and unforgiving arena, where states constantly strive to maximize their power and security.

Photography is, first of all, a way of seeing. It is not seeing itself.

The beauty of mathematics lies in its ability to reveal the underlying simplicity in what appears to be complex.

最大的风险是不冒任何风险。在一个快速变化的世界里，唯一注定失败的策略是不冒险。

 道德修养的最高境界，是认识到我们必须控制自己的思想。