There are lots of wonderful quotes about three-legged stools. Heinlein mentioned history, languages, and mathematics, lest you an ignorant peasant be. The Social Security Administration suggests social security, private pensions, and savings. Krieger says nutrition, fitness, and wellness. Others have said family, friends, and work; communication, trust, and respect; hope, faith, and charity; etc. I guarantee none of these deep thinkers had in mind Mars, EastHem, and WestHem. Something to think about, anyway. Enjoy!