Toddler: A glass of water, what shall I do with it?
Teenager: The glass is not half empty; the glass is full, half with water and half with air.
College Student: The glass is not half empty, the glass the twice the size than required.
Young Professional: The glass is not half empty, the glass is half full.
Middle-aged man: The glass is indeed half empty.
Old Retired Man: Holds the glass, drinks the water...
"I asked the right question as a toddler, but was looking for the wrong solutions all my life. I was thirsty and all I needed was to drink the water."
Moral of the story: Life is simple, enjoy it. Don't make it complicated by thinking too much.