Quote of the day
To be stupid, and selfish, and to have good health are the three requirements for happiness, though if stupidity is lacking, the others are useless.
Mary Walton

Bio: Mary Elizabeth Walton was a nineteenth-century American inventor who was awarded two patents for pollution-reducing devices. In 1879, Walton created a method for reducing the environmental hazards of the smoke emitted from locomotive, industrial and residential chimneys.






