Sam Altman

“Life is not a dress rehearsal—this is probably it. Make it count. Time is extremely limited and goes by fast. Do what makes you happy and fulfilled—few people get remembered hundreds of years after they die anyway. Don’t do stuff that doesn’t make you happy (this happens most often when other people want you to do something). Don’t spend time trying to maintain relationships with people you don’t like, and cut negative people out of your life. Negativity is really bad. Don’t let yourself make excuses for not doing the things you want to do.”
― Sam Altman

“A successful startup takes a very long time—certainly much longer than most founders think at the outset. You cannot treat it as an all-nighter. You have to eat well, sleep well, and exercise. You have to spend time with your family and friends. You also need to work in an area you’re actually passionate about—nothing else will sustain you for ten years.”
― Sam Altman, Startup Playbook