Quality in materials reflects quality in character.

"The study of computational complexity teaches us that some problems are inherently difficult, no matter how clever our algorithms are."

"La literatura nos enseña a ver el mundo con otros ojos, a entenderlo de otra manera."

心理学必须建立在直接经验和内省的基础上。

要训练一只鹰，你必须像鹰一样观察它。