11. Have fun. Trump writes: "Money was never a big motivation for me, except as a way to keep score." I agree with Donald Trump a zillion percent here and I have been saying this to most people who ask: "Why work so hard and earn so much if you cannot take it all with you?" Look at National Book Store founder Socorro C. Ramos and JG Summit/Cebu Pacific Air founder John Gokongwei, Jr.: they're in their 90s but still active; they live simply, so it's not about the money for them.