Louis de Broglie

Physics French 1892 – 1987 397 quotes

Proposed the wave nature of electrons and suggested that all matter has wave-like properties.

Most quoted

"The fundamental idea of my thesis was the following: The experiment of Young, the diffraction of X-rays, the photoelectric effect, the Compton effect, all these phenomena show that light has a dual nature, sometimes wave, sometimes corpuscle. Why should not matter also have a dual nature?"

— from Nobel Lecture, 1929

"The idea of wave-particle duality, which is at the heart of quantum mechanics, was born from the realization that light, previously considered a wave, also exhibits particle-like properties, and conversely, matter, previously considered particles, also exhibits wave-like properties."

— from General writings/lectures

"In space-time, everything which for each of us constitutes the past, the present, and the future is given in block... Each observer, as his time passes, discovers, so to speak, new slices of space-time which appear to him as successive aspects of the material world."

— from The Revolution in Physics

All quotes by Louis de Broglie (397)

The beauty of physics lies in its ability to reveal the absurdities of reality.

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My work simply confirmed what any sensible person already suspected: that the world is not as simple as it appears.

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The electron, a true chameleon, adapting its nature to suit the observer's whim.

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It's a good thing electrons don't have opinions, or we'd never get any work done.

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The universe, a grand stage for quantum theatrics.

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To truly understand nature, one must embrace its inherent contradictions.

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My theory was not so much a discovery as it was an observation of the obvious, once one stopped insisting on simplicity.

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The electron's behavior is a constant reminder that we are not the masters of the universe, merely its curious observers.

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If a tree falls in the forest and no one is there to observe it, does it make a wave or a particle?

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The universe has a peculiar sense of humor, and quantum mechanics is its punchline.

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Some call it duality; I call it a personality disorder of the fundamental particles.

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The electron, a true individualist, refusing to conform to our classical expectations.

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My work was simply to give a voice to the electron's unspoken desire to be both here and there at once.

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The universe, it seems, is quite fond of keeping us on our toes.

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To understand the very small, one must be prepared for the very strange.

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The electron, a master of disguise, always keeping us guessing.

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My theory was not a revolution, but merely a polite suggestion to the universe to be more consistent in its inconsistencies.

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The universe is a vast and intricate puzzle, and sometimes, the pieces are not what they seem.

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One must have a sense of humor to be a physicist; otherwise, the universe will simply overwhelm you with its absurdity.

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The electron, a true non-conformist, refusing to be pigeonholed.

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