"All truths are easy to understand once they are discovered; the point is to discover them."
"Spots are on the surface of the solar body where they are produced and also dissolved, some in shorter and others in longer periods. They are carried around the Sun; an important occurrence in itself."
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Source: Discoveries and Opinions of Galileo. Book by Stillman Drake (p. 92), 1957.
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"I have never met a man so ignorant that I couldn't learn something from him."
"The sun, with all those planets revolving around it and dependent on it, can still ripen a bunch of grapes as if it had nothing else in the universe to do."
"I do not feel obliged to believe that the same God who has endowed us with senses, reason, and intellect has intended us to forego their use."
"The laws of nature are written by the hand of God in the language of mathematics."
"Knowing thyself, that is the greatest wisdom."