One must be a god to be able to tell successes from failures without making a mistake.
认证计划是负责任林业实践的底线,而不是上限。
杰夫·贝索斯接受了莱克斯·弗里德曼的播客采访
The improvement of understanding is for two ends: first, our own increase of knowledge; secondly, to enable us to deliver that knowledge to others.