Enrico Fermi — "Physics is like sex: sure, it may give some practical results, but that's not wh…"
Physics is like sex: sure, it may give some practical results, but that's not why we do it.
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More from Enrico Fermi
"Young man, I am not trying to shake your faith in God, but in the physicists."
"It is not enough to invent. One must also know how to sell."
"Ignorance is never better than knowledge."
"The first principle of science is that you must not fool yourself—and you are the easiest person to fool."
"The universe is not only stranger than we imagine, it is stranger than we can imagine."
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Understanding this quote
What it means
The quote argues that the deepest motivation for doing physics—or any pure science—is intrinsic joy and intellectual passion, not utility. Just as intimacy is pursued for its own pleasure, science is fundamentally about curiosity and wonder. Practical outcomes are welcome byproducts, but they aren't the reason scientists dedicate their lives to the work. The drive is internal, not instrumental.
Relevance to Enrico Fermi
Fermi embodied this paradox more than almost any physicist: he built the first self-sustaining nuclear reactor in 1942, producing the most consequential practical result in physics history, yet colleagues remembered his delight in elegant problems for their own sake. He pursued cosmic rays, beta decay, and quantum statistics out of pure curiosity. The bomb was a consequence; the love of the puzzle came first.
The era
Fermi worked during the mid-20th century atomic age, when physics suddenly produced the most devastating technologies in history—nuclear bombs, reactors, radar. Society fiercely debated whether scientists bore moral responsibility for their discoveries' applications. This quote asserts that fundamental research is driven by curiosity, not consequence, reflecting a tension Fermi's entire generation wrestled with as pure science became inseparable from military and political power.
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