When I was in high school, I had a teacher explain learning is like a candle. He challenged me to get several candles and go outside on a very dark night with no house light.
When I got home, I talked to my grandfather to help me find some candles and matches. He helped me set up the candles on the back steps. Before we started, my grandfather read the note from the teacher, this is you at the beginning of the class - 1 candle. My grandfather started asking me questions. When I answered the question correctly, I would light a candle. In the beginning, I could not see the steps. After answering the questions, I could see all the steps.
At the bottom of the page, another note, look at the candles and see how much you have learned. Now put the candles to your back. Look down, you can see a path. Look out into the darkness as far as you can see. There will always be more to learn. Use the knowledge for the candles to go forward and learn. No matter how many candles you light, there will be 1 more candle in the shadows to be lite.
As we find ourselves with more and more free time on our hands. I challenge you to read, watch a video, do something to learn every day. Every day you will be lighting a candle of knowledge.
Now that I am in my 50's, I understand the story. An old man and a young man were working together. The young man was trying to tell the old man this is a better way. The old man waited until the young man was finished. He looked at him and said, son, I have forgotten more than you know. The old man looks at the young lady, call me when he needs me. And he walks off. Sometimes we forget that the people before us have learned lessons that we can learn from.