For beautiful eyes, look for the good in others; for beautiful lips, speak only words of kindness; and for poise, walk with the knowledge that you are never alone.
美丽的眼睛能发现他人身上的美德,迷人的嘴唇能吐露善意的话语,优雅的姿态是因为了解自己不是孤立独行。
Dictatorships breed fear, fear breeds silence, silence breeds oppression.
只要有能力,总有机会翻身。  
The most important thing in science is not to solve problems, but to ask the right questions.
Sustainability isn't a choice—it's our responsibility to the next generation.