Oprah Winfrey gave the commencement speech at Harvard in 2013. Here are a
couple of takeaways from her speech which relate to learning and teaching:

1. Failing is part of learning.


2. When You Learn, Teach. This is a quote from Maya Angelou, but it gets to
   the point of why teaching not only helps you learn but provides knowledge
   and value to others. This is the main benefit of teaching, it lifts
   everyone to your level by sharing what you know.


3. Validation. Each and every interview she did was with someone who wanted
   to be validated. <q>Was that okay?</q> she was asked. That validation is exactly
   what you are given when you teach what you learn. Either the person gets
   it, or they don't. You validate what you know and your ability to express
   it to someone else.

Read the transcript of the speech at:
https://news.harvard.edu/gazette/story/2013/05/winfreys-commencement-address/
Or watch it at: https://www.youtube.com/watch?v=GMWFieBGR7c