The beauty and the scent of roses can be used as a medicine and the sun rays as a food.
Nikola TeslaEre many generations pass, our machinery will be driven by a power obtainable at any point of the universe.
Nikola TeslaI am credited with being one of the hardest workers and perhaps I am, if thought is the equivalent of labour, for I have devoted to it almost all of my waking hours. But if work is interpreted to be a definite performance in a specified time according to a rigid rule, then I may be the worst of idlers.
Nikola Tesla