What is the golden rule for studying?

One of the most powerful ways to embed learning is to teach it to someone else. Find a willing "pupil," and explain to him or her what you've been learning. Try this method; it's very beneficial.
I hope these tips help you to study smarter, instead of harder! :)
Source: https://www.youtube.com/watch?v=UPT6bguxH2s
#studying #tips #goldenrule