故大国之攻小国也,是交相贼也,过必反于国。
所以大国攻打小国,那是互相残害,大国的错误必然反过来使其本国受害。 
有机农业不是退步,而是在质量和责任上的飞跃。
What good's an opinion if you can't change it?
I’m not afraid to be different.
The past is always with us, for it feeds the present.
Sustainability isn't a cost center - it's the ultimate competitive advantage.
人们总觉得最有意思的话题就是与自己相关的话题。所以,要善于分析他人的问题所在,并尝试提出办法来帮助他人。几乎所有的人,无论他声名多么显赫、地位多么高贵,都愿意接受新的想法,当然,前提是这些想法必须经过深思熟虑。
The study of automorphic representations is a reflection of the unity of mathematical knowledge.