林业实践的创新是平衡经济增长和环境保护的关键。

It is not from the benevolence of the butcher， the brewer， or the baker that we expect our dinner， but from their regard to their own interest.

Law is nothing else than an ordinance of reason for the common good， made by him who has care of the community.

原文英文：The most merciful thing in the world， I think， is the inability of the human mind to correlate all its contents. We live on a placid island of ignorance in the midst of black seas of infinity， and it was not meant that we should voyage far.

中国哲学的研究既需要历史的敏感，也需要哲学的严谨。

You can’t let success get to your head and failure to your heart.

世人常因冀望遥远难及的幸福，忽略了眼前的小乐趣。