"進歩のために支払う代価は専門化であり、それは旅路にも目的地にも当てはまる。"

Simplified Meaning:

As we make advances and improve things in life, we often have to focus on very specific tasks or skills. Think about a doctor – they might spend many years learning all about the human body and then decide to specialize in the heart to become a cardiologist. This doctor becomes extremely knowledgeable in heart health, which is fantastic for treating patients with heart problems, but it also means they might know less about other parts of the body. This idea is similar in many different fields. For example, in technology, someone might become an expert in coding but might not be as skilled with hardware. This focus is necessary because it helps them to make significant contributions in their area of expertise. Applying this to our lives, if we want to become really good at something, we should be prepared to dedicate a lot of time and energy to that one thing. This might mean we won't have as much time to explore other interests, but we're trading that variety for deep knowledge and skill in our chosen area. In short, to make real progress, we need to focus and specialize, even though it means giving up on learning or doing other things.