The study of intelligence must be grounded in the study of symbol systems.
对智能的研究必须基于对符号系统的研究。
真相很少纯粹,也绝不简单。
You have to be passionate about what you do, or you'll never succeed.
The laws of physics are universal, but our understanding of them is constantly evolving.
The artist is the antenna of the human race.
Sustainable forestry is not an option; it's an obligation.