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Some years ago, as Your Serene Highness well knows, I discovered in the heavens many things that had not been seen before our own age.

— Galileo Galilei Letter to the Grand Duchess Christina (1615)

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More quotes by Galileo Galilei

Wine is a mixture of moisture and light.

Lorenzo Magalotti's Scientific and Scholarly Letter (1721)

Names and attributes must be accommodated to the essence of things, and not the essence to the names, since things come first and names afterwards.

Discoveries and Opinions of Galileo (1957)

What has philosophy got to do with measuring anything? It's the mathematicians you have to trust, and they measure the skies like we measure a field.

You cannot teach a man anything, you can only help him to find it within himself.

Nature doth, and in it alone is discovered an infinite wisdom, so that Divine Wisdom may be concluded to be infinitely infinite.

Dialogo sopra i Due Massi Sistemi del Mondo (1632)

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