Think wrongly, if you please, but in all cases think for yourself.
你可以想错，但无论如何要为自己思考。
保持饥饿，保持愚蠢。
You have to take the opportunities when they come along.
"The truth is rarely pure and never simple."
系统的稳定性取决于开环传递函数在复平面上的行为。