A famous saying that you are full of energy in your study.

In the long river of seeking truth, only by learning, continuous learning, diligent learning and creative learning can we cross mountains and mountains. -Hua

Now, what I am afraid of is not the hard and severe life, but that I can no longer learn and know the world I am eager to know. For me, study or die. Lomonosov

You can find your own happiness in study, labor, science and selfless service to the people. -Jay Lenski

I am a teacher. If you don't understand anything, you can keep asking me.

I'm happy to answer your question. I hope you can adopt them.