行为不仅仅是对刺激的反应，而是由期望和目的引导的。
Behavior is not just a response to a stimulus, but is guided by expectations and purposes.
劳动的自然价格是使劳动者能够生存并延续其后代所必需的价格，既不增加也不减少。
发现的兴奋感永远不会消退。
The most important single central fact about a free market is that no exchange takes place unless both parties benefit.
The artist must be a bridge between the visible and the invisible.
生活中唯一的限制是你自己设定的。