The great ideological battles between liberalism and communism, or between democracy and authoritarianism, have been replaced by a general consensus on the desirability of liberal democracy.

自动控制的根本问题是在存在干扰的情况下维持期望状态。

经国济世之道来自广博的学问，它才有不竭的源泉；修心养性之道体现在建功立业上，它才算得上圆满。除了建功立业之外，世上没有真正的学问；要寻求修心养性之道，必须到圣贤的文章中去找

客人来了，主人不去招呼，他可能是个不知事理的傻子。

The future is not something we enter. The future is something we create.

A building must be both shelter and symbol.

写作是关于创造一些东西，而不是表达自己。