Any change, even a change for the better, is always accompanied by drawbacks and discomforts.

实现净零排放的道路并不容易，但合作将使我们到达目标。

The essence of cryptography is to allow communication in the presence of adversaries.

真正的可持续性意味着为子孙后代留下比我们发现时更好的土地。

节制：食不过饱，饮不过量。