People tend to acquire wisdom as they age, particularly if they have open and expanding minds. Our temperament also tends to mellow with age, and also our perspective tends to get more circumspect. When I was 18, I was a Republican, when I was only self-concerned and was motivated primarily by my drive to acquire wealth for myself. Now I am older, and more concerned about my community, and the welfare of future generations, and tend to not get as excited about meaningless things.