Nikola Tesla, inventor: “If you want to find the secrets of the universe, think in terms of energy, frequency, and vibration”

The driving force behind the modern electricity system was a genius in his lifetime who, in fictional works, even confronted Beelzebub.

Nikola Tesla, scientist: “Our virtues and our failings are inseparable, like force and matter. When they separate, man is no more”

The engineer's discoveries were key to the development of modern electricity; he conceived of science as a service to humanity.