系统的稳定性取决于开环传递函数在复平面上的行为。

农民是最早的环保主义者——他们比任何人都更了解土地。

Never stop learning, because the world never stops changing.

创新不是一种选择，而是在当今快节奏市场中生存的必要条件。

I didn't get to where I am by chasing mediocre opportunities.

The act of writing is an act of optimism. You would not take the trouble to do it if you felt it didn't matter.

懒惰是所有恶习的开端，所有美德的王冠。