Many of us learned about sharing through treats like candy. The problem with sharing candy is that the more people I share with, the less candy is left for me. Maybe that’s why many people prefer not to share.

There are some things that we can share without losing anything: Wisdom, understanding, and love are examples. There is a magical arithmetic that happens with these substances. Explaining something to another person increases my understanding of it. So, the more I share my understanding, the more understanding I gain.