人类认知最好被理解为信息处理层次的层级结构。

The property which every man has in his own labor， as it is the original foundation of all other property， so it is the most sacred and inviolable.

"In tennis, like in life, you have to keep moving forward—one point at a time."

能源的未来在于传统能源与可再生能源之间的平衡。