In English, there are two words for "like": "like" and "love", which represent different degrees. If the degree is deeper than "love", then "passion" should be used to describe it. If a person wants to do something to the extreme, they probably need to have an interest in it. Academician Xu Zhihong once said, "No matter what kind of work you do, once you have an interest, you will have the perseverance to persist and can focus on one thing for a long time." In my eyes, passion is "painful and joyful" about something. When I love something, no matter how much time I spend on it, I am willing to do so.
Our English teacher once said, "If you want to do well in the college entrance examination English, it's very simple, the path is already paved, but if you want to learn English well, you need to have an interest in English." This thing called interest may flash like a spark at a certain moment, just like a couple falling in love at a certain moment through eye contact when they meet again. People with interest and the things they are fascinated with also fall into the river and cannot extricate themselves.
Russell described philosophy in his book "A History of Western Philosophy" as follows: "There are many gaps between specific sciences. When we accidentally fall into the gaps from specific sciences, we will be trapped in endless thinking, and philosophy is born." Democracy, fairness, freedom, justice, good and evil, the more abstract the nouns, the more attractive they are to us. (The Crowd: A Study of the Popular Mind) The process of thinking about these concepts is "painful and joyful".
Just as talent is innate, some people are naturally sensitive to language, some people are naturally interested in philosophy, and some people are fascinated by a life immersed in scientific research. The brains on our shoulders are all different. Discovering what we truly love and finding kindred spirits is what we strive to do in our lifetime.