Two of my favorite writers--Maria Popova writing about Carol Dweck and her ground-breaking book, Mindset. The key takeaway for me has been to focus on growth, and not perfection. People with a growth mindset see failures as learning opportunities, while those with a fixed mindset are so afraid of failing that they often won't try new things. I see students like this all the time, and it makes me sad. Have we drummed it into them that ability is something you have or you don't? Do we make them afraid to try, because they feel punished if they don't immediately succeed? This article is a beautiful summary of Dweck's work, but her book is well worth the time.