The World According to Me

Muhammad Ali said,
"The man who views the world at fifty the same as he did at twenty has wasted thirty years of his life."

I say :-
A Man's View of The World :
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At 10 yrs old, he views the world as a perfect sphere

At 20 yrs old, he says the world is an imperfect sphere

At 50 yrs old, he questions,"are you sure it's a sphere?"

At 100 .... if he lives to be a 100, he thinks real hard , " err ... what's the shape of the world again???"