在一个快速变化的世界里，诚信和质量的价值观是永恒的。

地质学的进步因用想象的原因代替真实的原因而大大受阻。

You cannot get through a single day without having an impact on the world around you. What you do makes a difference, and you have to decide what kind of difference you want to make.

养猪是个技术活，不是谁都能养好的。