When we quarry with future generations in mind, stone becomes a bridge, not just a resource.
Political order is not just about the state, but also about the rule of law and accountability.
I have called this principle, by which each slight variation, if useful, is preserved, by the term Natural Selection.  
The most radical art is often that which asks the simplest questions.
做出伟大事情的唯一方法是热爱你所做的事。