If the genius of invention were to reveal to-morrow the secret of immortality, of eternal beauty and youth, for which all humanity is aching, the same inexorable agents which prevent a mass from changing suddenly its velocity would likewise resist the force of the new knowledge until time gradually modifies human thought.
Nikola TeslaWe crave for new sensations but soon become indifferent to them. The wonders of yesterday are today common occurrences
Nikola TeslaUniversal peace as a result of cumulative effort through centuries past might come into existence quickly - not unlike a crystal that suddenly forms in a solution which has been slowly prepared. Science is but a perversion of itself unless it has as its ultimate goal the betterment of humanity.
Nikola TeslaOf all the frictional resistances, the one that most retards human movement is ignorance.
Nikola Tesla