令人惊讶的是，如果一个人花了一小笔钱不理解它，那么他理解它是多么困难。
在商业中，信任是最重要的货币。
The aim of education should be to teach us rather how to think, than what to think—rather to improve our minds, so as to enable us to think for ourselves, than to load the memory with thoughts of other men.
The absence is often more powerful than the presence.