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I recognize nothing that is not material. In physics, chemistry and biology I see only mechanics. The Universe is nothing but an infinite and complex mechanism. Its complexity is so great that it borders on randomness, giving the illusion of free will.

— Konstantin Tsiolkovsky

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Science

More quotes by Konstantin Tsiolkovsky

The blue distance, the mysterious Heavens, the example of birds and insects flying everywhere —are always beckoning Humanity to rise into the air.

All the Universe is full of the life of perfect creatures.

A planet is the cradle of mind, but one cannot live in a cradle forever.

Nothing exists, save atoms and their combinations. There is no atom, which wouldn't periodically take part in life.

Планета есть колыбель разума, но нельзя вечно жить в колыбели

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All religions, arts and sciences are branches of the same tree. All these aspirations are directed toward ennobling man's life, lifting it from the sphere of mere physical existence and leading the individual towards freedom.

Albert Einstein Moral Decay (1937)

Science and religion are two human enterprises sharing many features.

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To doubt everything or to believe everything are two equally convenient solutions; both dispense with the necessity of reflection.

Henri Poincaré Science and Hypothesis (1901)

Attribution

Quote text and notes from Wikiquote: Konstantin Tsiolkovsky (page history), available under CC BY-SA 4.0. Source quality and labels are our own summary of what Wikiquote records.