Religion is god's population-control tool
Life is the inside of a box, and we can't open it.
Progress of mankind is the decadence of humanity.
There cannot be Ups in a roller-coaster ride unless there are Downs.
Power in the hands of the stupid is often a dangerous thing. Hitler proved it.
Having settled down in the promised land of money and adventure - returning to a land of your parents last days can be a big dilemma to many. Isn't your greatest wealth your parents, and the best adventure - to see them happy before they go.