"人是一种智慧的存在，不是由器官服务，而是服务于他的器官。"

Simplified Meaning:

The quote means that humans aren't just guided by their thoughts and smart ideas; instead, our bodies and basic needs control a lot of what we do. For example, if you're very hungry, your mind will focus on finding food before you can think about other things like solving problems or creating something new. This idea also suggests that our physical needs, like eating, sleeping, and staying healthy, have a big influence on our actions and decisions. Think of it this way: even if someone has great knowledge or brilliant ideas, they won't be able to use them if they don't take care of their body first. Imagine a student trying to study for an important test. No matter how smart they are, if they are exhausted and haven't slept, their brain won't work well. Similarly, in history, many great leaders and thinkers needed to stay healthy to do their work; otherwise, they couldn't contribute much. So, in life, it's important to remember to take care of your physical health, because it forms the foundation for all other things you want to achieve. This balance between our mind and body helps us function better and achieve more.