The study of the mind must be free from all preconceived notions.

History is not the past—it is the method we have evolved of organizing our ignorance of the past.

中心地的等级反映了所提供的商品和服务的等级。

The future of energy lies in the integration of traditional and renewable energy sources, not in their opposition.

The more you destroy, the more you create.

Memories， even your most precious ones， fade surprisingly quickly. But I don’t go along with that. The memories I value most， I don’t ever see them fading.