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They who depend upon manifest observations will philosophize better than those who persist in opinions repugnant to the senses.

Galileo Galilei

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Galileo Galilei
Age: 77 †
Born: 1564
Born: February 15
Died: 1642
Died: January 8
Astrologer
Astronomer
Engineer
Inventor
Mathematician
Philosopher
Physicist
Polymath
Scientist
University Teacher
Galileo
G. Galilei
Observation
Senses
Philosophize
Depends
Repugnant
Opinion
Observations
Upon
Persist
Better
Manifest
Depend
Opinions

More quotes by Galileo Galilei

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If experiments are performed thousands of times at all seasons and in every place without once producing the effects mentioned by your philosophers, poets, and historians, this will mean nothing and we must believe their words rather than our own eyes?
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I believe that the intention of Holy Writ was to persuade men of the truths necessary to salvation such as neither science nor other means could render credible, but only the voice of the Holy Spirit.
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To understand the Universe, you must understand the language in which it's written, the language of Mathematics.
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But, because my private lectures and domestic pupils are a great hinderance and intteruption of my studies, I wish to live entirely exempt from the former, and in great measure from the latter. ... in short, I should wish to gain my bread from my writings.
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Philosophy is written in that great book which ever lies before our eyes — I mean the universe — but we cannot understand it if we do not first learn the language and grasp the symbols, in which it is written.
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I do not know what to say in a case so surprising, so unlooked for and so novel.
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With regard to matters requiring thought: the less people know and understand about them, the more positively they attempt to argue concerning them.
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Nature's great book is written in mathematics.
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I have never met a man so ignorant that I couldn't learn something from him.
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To be humane, we must ever be ready to pronounce that wise, ingenious and modest statement 'I do not know'.
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In questions of science, the authority of a thousand is not worth the humble reasoning of a single individual.
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Surely it is a great thing to increase the numerous host of fixed stars previously visible to the unaided vision, adding countless more which have never before been seen, exposing these plainly to the eye in numbers ten times exceeding the old and familiar stars.
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I truly believe the book of philosophy to be that which stands perpetually open before our eyes, though since it is written in characters different from those of our alphabet it cannot be read by everyone.
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There are those who reason well, but they are greatly outnumbered by those who reason badly.
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You can't teach anybody anything, only make them realize the answers are already inside them.
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I, Galileo, son of the late Vicenzo Galilei, swear that I never said that the prime numbers are useless. What I said was that you cannot count lunar craters by counting 2, 3, 5, 7.
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Wine is sunlight, held together by water.
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They know that it is human nature to take up causes whereby a man may oppress his neighbor, no matter how unjustly. ... Hence they have had no trouble in finding men who would preach the damnability and heresy of the new doctrine from the very pulpit.
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It is very pious to say and prudent to affirm that the holy Bible can never speak untruth -- whenever its true meaning is understood. But I believe nobody will deny that it is often very abstruse, and may say things which are quite different from wha.
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Surely, God could have caused birds to fly with their bones made of solid gold, with their veins full of quicksilver, with their flesh heavier than lead, and with their wings exceedingly small. He did not, and that ought to show something. It is only in order to shield your ignorance that you put the Lord at every turn to the refuge of a miracle.
Galileo Galilei