The salary consists of several parts, including basic scholarships and research grants. I'm not from the school of theory. I don't know the exact value, it should be around 3000, but it is certainly not as high as the same yard in our Institute of Physics. We have more than 3,000 doctors in physics, and the group of three doctors can get 4,000 to 4 100. In life, we usually eat in the canteen, either the canteen of the Institute of Physics or the canteen of the Institute of Mathematics. They are all very close. The Institute of Mathematics, the Institute of Theory and the Institute of Physics are all in a small yard, just a few steps away. The living expenses are enough for one person, so it's not a pinch. If you spend money lavishly, that's another matter. Life in graduate school will definitely be different from what you think. Maybe you imagine Daniel in the book, but remember, those are legends. If you want to gain something, you have to sit on the bench for a long time, and scientific research is boring. Only when you really enter scientific research can you appreciate its connotation. As for the thesis, you must read a lot of literature, because you need to know what others have done and what you can do. I don't know if I gave you the information you wanted.