Some people have a gift for learning, especially for languages, just like the old people in our question today. The old man in our question today knows so many languages, and then he asks the old man if he got good grades when he was young.
My answer is that it doesn't matter much. After all, each of us actually has our own strengths, and the average person is not much different from the brain. I believe everyone knows that there are not many people who really develop their brains more than others. So I don't think it has much to do with grades. I believe many people share my view.
As I said before, language is really difficult for me, but it only represents me personally, and there are many people with excellent language talent. I know such people who can speak the languages of many countries. I really admire them.
Take the old man in our question today, if nothing else, just say his age. It stands to reason that most people should have many diseases at this age, and then their consciousness should not be too clear, but the old man in our problem did it. At this age, being able to speak many languages is really admirable.
If we want to talk about his achievements, I think he should have done well when he was young. After all, excellent people are excellent in all aspects. I believe the old man should have done well when he was young.
Here's a digression. If you also have a gift for languages, I suggest you learn more other languages.