The most sustainable harvest is one that leaves the forest healthier than we found it.
最可持续的采伐是让森林比我们发现时更健康。
石油化工行业的未来在于可持续发展。
文学不过是一个有引导的梦。
"We are all born mad. Some remain so."
The history of mathematics is a history of human thought and progress.