"Una acción no sabe que la posees."

Simplified Meaning:

When you buy a piece of a company, like a stock, the stock itself doesn't know that you bought it. It isn't aware of your plans, needs, or feelings. Just like if you buy an apple from a market, the apple doesn't have any idea who you are. Stocks are the same way—they can't shift their behavior based on who owns them. Let's say you buy stock in a car company. If the car company has a good year and makes a lot of money, the stock might become more valuable. But if the company faces problems, the stock might lose value. This happens no matter who owns the stock. Your personal hopes or financial situation don't change what the stock is going to do. It's important to remember this because it means you should make stock-buying decisions based on research and logic, not emotions. You won't be able to control the stock’s performance just because you own it. Understanding this can help you manage your expectations and make smarter investment choices.