I could only achieve success in my life through self-discipline, and I applied it until my wish and my will became one.
Nikola TeslaOur senses enable us to perceive only a minute portion of the outside world. Our hearing extends to a small distance. Our sight is impeded by intervening bodies and shadows. To know each other we must reach beyond the sphere of our sense perceptions. We must transmit our intelligence, travel, transport the materials and transfer the energies necessary for our existence.
Nikola Tesla