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。
Without a good user experience, even the best business model is just talk.
The market is a great teacher, but it charges a high tuition.
多线进化论是研究特定文化如何适应特定环境的进化过程。
Sometimes we get sad about things and we don’t like to tell other people that we are sad about them.
有时我们会为某些事情感到悲伤,而我们不愿意告诉别人我们为此感到悲伤。