请记住永远高兴的五条简单规则。

Remember the five simple rules to be happy.

youdao

请永远记住：这次萧条是可以治愈的。

But always remember: this slump can be cured.

youdao

请记住，您永远都具备力量来改变您的处境。

Remember, you always have the power to change your situation.

youdao

If you have a real gas and you write du is Cv dT and your path is not a constant volume path, then you are making a mistake. But for an ideal gas, you can always write this. And this turns out to be very useful to remember.

对于真实气体，如果其变化过程,不是恒容的，du=Cv*dT就不成立，但对于理想气体,这条规则永远成立,这一点非常有用，请记住。

麻省理工公开课 - 热力学与动力学课程节选