“We are in danger of destroying ourselves by our greed and stupidity. We cannot remain looking inwards at ourselves on a small and increasingly polluted and overcrowded planet.”

~ Stephen Hawking 

If you could create a painless, inexpensive cure for a single ailment, what would you cure and why? 

I will create a cure for greed. It is the source of all evil. Excessive hunger for power, money and anything for that matter will always lead to trouble, misery and sufferings. Nobody can have it all. If only people realize that.