Nikola Tesla — "Man must exercise temperance and control of his senses and leanings in every way…"
Man must exercise temperance and control of his senses and leanings in every way, thus keeping himself young in body and mind.
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More from Nikola Tesla
"I could not sleep for several nights for the sheer joy of it."
"A new idea must not be judged by its immediate results."
"Our senses enable us to perceive only a minute portion of the outside world."
"Let the future tell the truth and evaluate each one according to his work and accomplishments. The present is theirs; the future, for which I have really worked, is mine."
"I have not married, so that I may devote myself entirely to my work."
About Nikola Tesla (1856-1943)
Serbian-American inventor and electrical engineer whose alternating-current designs powered the modern electrical grid; died poor and largely forgotten. Closely associated with George Westinghouse (his AC-power business partner) and Mihajlo Pupin (fellow Serbian-American physicist at Columbia). For an intellectual contrast, see Thomas Edison, American inventor and direct-current advocate — Edison's direct-current power-distribution scheme was displaced by Tesla-Westinghouse AC in the 1890s 'War of Currents'. Edison ran a public-relations campaign electrocuting animals to discredit AC — the most famous engineering-ethics rivalry in American history. Tesla's AC won and powers nearly every electrical grid on Earth.
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Understanding this quote
What it means
True longevity comes from disciplined self-regulation — controlling appetites, impulses, and desires rather than indulging them freely. By mastering the senses and maintaining mental and physical habits rooted in moderation, a person preserves their vitality and sharpness well beyond what excess would allow. Youthfulness is less about age than about ongoing, conscious restraint and purposeful living.
Relevance to Nikola Tesla
Tesla was famously ascetic — he avoided meat for long periods, slept minimally, abstained from romantic relationships, and maintained rigorous daily routines including walks and precise meal habits. He worked obsessively into his eighties, crediting disciplined living for his sustained intellectual capacity. His celibacy and dietary control were deliberate choices he tied directly to creative and scientific productivity.
The era
Tesla lived through the Gilded Age and early 20th century, a period of industrial excess, rapid urbanization, and rising consumer culture. Public health science was emerging, with growing interest in longevity, eugenics, and vitalism. Temperance movements were culturally prominent, and intellectuals debated whether modern civilization's comforts were weakening humanity physically and morally — making Tesla's austere philosophy a pointed counter-statement.
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