Teaching is an honour. To be able to impart your knowledge and experience to hopefully shine a light in someone else’s mind is indeed a privilege. If you ever have the chance to do that, do so. Teach. Allow what you know to not only benefit yourself but others as well. You wouldn’t want it all to only remain in your mind and eventually dies with you. That would be a shame. And that would mean that you have lost the chance to impart the wisdom that was bestowed to you unto others. Besides the good that you can impart to the world, you will find the happiness inside you grow when you teach. It is not always easy but it is an exciting challenge. The way I see it, teaching is a win for the world, and yourself too.