因果推理需要仔细思考分析背后的假设。

The advantages found in history seem to be of three kinds， as they result either from the mere situation of the climate and country or from the form of government and of the character of the people， or from those finer principles and morals， which may be called the recommendations of philosophy.

What good's an opinion if you can't change it?

数学和计算机科学之间的相互作用是创新的丰富源泉。

人生不是自己选择的，但也是选择的。

Always keep the faith.

All behavior is ultimately reducible to physical and chemical processes.