Nature is highly nonlinear. We can go the hard route and get a PhD in physics, but because we are engineers, we make useful assumptions and abstractions so we can go the easy route and build very useful things; also somewhere down the road there's a lot of dollars.
——MIT 6.002 电路与电子学
🤣 如果我们的大学也能这么教书,我毕业的时候数电模电应该能学得更好一点