"可怜的自我更加艰难；它必须服从三个严苛的主人，并且必须尽其所能调和三者的要求和需求。"

Simplified Meaning:

The ego is like a person trying to make three different people happy at once, all of whom want very different things. One person, or "master," is our basic desires, like hunger or the need for safety. Another is our sense of right and wrong, like wanting to be fair or brave. The third is the outside world, full of rules and expectations, like our job or family responsibilities. Balancing these three is really tough because they often pull us in different directions. Imagine you're trying to eat healthy to stay fit, but you also want to enjoy a slice of cake, and at the same time, your friend keeps inviting you out to eat junk food. Your job is to figure out how to make all these parts happy without letting any one of them take over completely. It's like juggling – you have to keep everything moving smoothly, which takes a lot of effort and attention. To manage this in life, it's important to listen to all your different needs and find a good balance between them, so you stay healthy and happy without ignoring any part of yourself too much.