Actions are right in proportion as they tend to promote happiness； wrong as they tend to produce the reverse of happiness.

The dead are never far from us. They’re in our hearts and on our minds and all around us.

Sustainability isn't an option; it's our responsibility to the next generation.

人的本性是不断生长的生理，每天都在生成变化。

伟大的设计解决问题，而不仅仅是看起来好看。

求知若饥，虚心若愚。