If you're changing the world, you're working on important things. You're excited to get up in the morning.

The discovery of the genetic code was a monumental step in understanding the molecular basis of life.

或许你能少说点？

心灵是一个可以在多个层次上分析的复杂系统。

每一片我们没有回收的塑料都是我们系统和责任的失败。