我们这个时代的挑战是创造一个可持续的能源未来。

The present state of the system of nature is evidently a consequence of what it was in the preceding moment, and if we conceive of an intelligence which at a given instant comprehends all the relations of the entities of this universe, it could state the respective positions, motions, and general effects of all these entities at any time in the past or future.

当我们保护生物多样性时，我们保护的是自然恢复力的蓝图。

Be a yardstick of quality.Some people aren’t used to an environment where excellence is expected.

沉默不可避免地仍然是一种言语形式。