"商売のコツだけを学ぶのではなく、商売を学びなさい"

Simplified Meaning:

When you focus only on shortcuts or quick tips, you miss understanding the full depth of a skill or profession. Imagine you want to be a chef. If you only learn a few recipes, you might make decent meals, but to truly excel, you need to understand cooking principles like how flavors work together, different cooking methods, and food safety. Mastering these basics gives you more flexibility and creativity in the kitchen. Similarly, in any job, it’s better to grasp the essential, core knowledge rather than just a few clever strategies. For example, a good teacher isn't just someone who knows handy classroom tips; they understand how students learn, how to create effective lesson plans, and manage a classroom. By fully learning the trade, you gain a deeper, more lasting ability to succeed and adapt to new challenges. This makes you more competent and reliable in the long run, compared to just knowing a few tricks.