If you can’t explain it to a six year old, you don’t understand it yourself.
Albert Einstein

I selected this quote because it helps me a lot with learning and understanding things. If you can explain a concept to a six year old, that means you understand it enough that you are able to break it down into simpler parts that you can explain and then build up to the big idea. If you just have a superficial understanding of something then you would not have the knowledge to explain the simpler parts to a child, who does not know anything about what you are saying. Keeping this quote in mind, you don’t have to actually talk to a six year old. You can instead try writing an article or essay about a concept that a child should be able to read or understand.

You can use this quote to check if you fully understand a concept. If you are writing a test on this concept you will have an easier time if you practice using this quote (especially writing questions).

Citations:

The Nobel Prize. (1921). Albert Einstein. The Nobel Prize in Physics 1921. Retrieved September 25, 2021, from https://www.nobelprize.org/prizes/physics/1921/summary/.