The strength of a response tendency depends on the amount of reinforcement received.

The most successful urban spaces are those that foster human interaction and connection.

I constantly see people rise in life who are not the smartest, sometimes not even the most diligent, but they are learning machines. They go to bed every night a little wiser than they were when they got up and boy does that help, particularly when you have a long run ahead of you.

Art is not about answers, it's about questions.

有些事情，无论我们多么努力，都无法使自己相信。

Civilization will not last, freedom will not survive, peace will not be kept, unless a very large majority of the people unite to defend them.