For many, the new year is a time for reflecting on the past as well as looking toward the future. Billionaire philanthropist Bill Gates recently sat down to take stock of his personal and work life in a tradition he calls an "end-of-year assessment."

"Some people think it is corny, but I like the tradition," writes Gates in a blog posted Saturday. For his 2018 reflection, Gates began by asking himself, "What was I excited about?" and "What could I have done better?"