If we don't change direction, we'll end up where we're headed.

The spread of liberal democracy and the integration of the world economy have created a situation in which the only legitimate form of government is one that is based on popular sovereignty and respects basic human rights.

The truth is, the past is all we have. We can't change it, but we can learn from it.

The quality of light is the quality of space.

我这一代人最伟大的发现是，一个人可以通过改变态度来改变他的生活。

I write to make sense of the world around me.

The world is full of obvious things which nobody by any chance ever observes.