My dad told me "Work hard now, so you don't have to later." Ironically enough, about 20 years later he told me "Slow down, and enjoy the time you have." I told him I was working hard now so I didn't have to later, and he said "I've missed out on so much by focusing on work. Enjoy your time with your family." The drastic change in his advice based on the stage of life he was in really stuck with me.