The most beautiful as well as the most ugly inclinations of man are not part of a fixed biologically given nature, but result from the social process which creates man.
可持续性不再是可选项;对于任何想在21世纪蓬勃发展的企业来说,它都是必需品。
We say of some things that they can't be forgiven, or that we will never forgive ourselves. But we do—we do it all the time.