"The source of this energy is the sun's radiation"
About this Quote
The intent feels corrective. In an era when “vital forces” and romantic metaphors for life still lingered in the cultural air, tying “this energy” to solar radiation is a demystification and a quiet flex: biology is not magic; it’s physics plus time. The phrasing also smuggles in humility. If the sun is the source, then organisms aren’t creators of energy, just converters, ingenious middlemen. That framing aligns with 20th-century biochemistry’s project of translating life into pathways, gradients, and reactions rather than essences.
The subtext is ecological before ecology became a mainstream moral language. By tracing energy back to sunlight, he implicitly links every bite of food, every muscular contraction, every cellular repair to a shared dependency. It’s a unifying claim with consequences: the biosphere is a solar economy, and tamper with the conditions of that economy and you tamper with everything downstream.
Context matters, too. Coming from a Nobel-winning biochemist, the sentence is less a poetic flourish than an orientation device: to understand metabolism, start where the energy enters the system. It’s a reminder that the grandest questions can have a disarmingly simple first cause.
Quote Details
| Topic | Science |
|---|---|
| Source | Verified source: Oxidation, Energy Transfer, and Vitamins (Albert Szent-Gyorgyi, 1937)
Evidence: The source of this energy is the sun’s radiation. (PDF p. 1 (printed page 440/441 boundary)). Primary source is Albert Szent-Györgyi’s Nobel Prize lecture (Nobel Lecture), delivered December 11, 1937, at Karolinska Institutet, Stockholm. The sentence occurs in the opening paragraph of the lecture (immediately after: “Without energy life would be extinguished instantaneously, and the cellular fabric would collapse.”). NobelPrize.org hosts the official lecture page and the linked PDF of the lecture text. This is a spoken lecture later published by the Nobel Foundation; NobelPrize.org notes it was also reprinted in the volume 'Nobel Lectures, Physiology or Medicine 1922–1941' (Elsevier, 1965). Other candidates (1) Physiology Or Medicine, 1922-1941 (Jan Lindsten, 1999) compilation95.0% ... The source of this energy is the sun's radiation . Energy from the sun's rays is trapped by green plants , and ..... |
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Citation Formats
APA Style (7th ed.)
Szent-Gyorgyi, Albert. (2026, February 11). The source of this energy is the sun's radiation. FixQuotes. https://fixquotes.com/quotes/the-source-of-this-energy-is-the-suns-radiation-29660/
Chicago Style
Szent-Gyorgyi, Albert. "The source of this energy is the sun's radiation." FixQuotes. February 11, 2026. https://fixquotes.com/quotes/the-source-of-this-energy-is-the-suns-radiation-29660/.
MLA Style (9th ed.)
"The source of this energy is the sun's radiation." FixQuotes, 11 Feb. 2026, https://fixquotes.com/quotes/the-source-of-this-energy-is-the-suns-radiation-29660/. Accessed 12 Feb. 2026.








