The most sustainable forest is one that provides value to people while maintaining its ecological integrity.
最可持续的森林是在保持其生态完整性的同时为人们提供价值的森林。
In economics, small changes in rules can lead to large changes in outcomes.
你可以吃任何想吃的甜品——如果你可以只吃三口的话。
Theorems are not discovered by accident.
"You gave me a forever within the numbered days."