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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.

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
Character
Since
Book
Written
Perpetually
Different
Eyes
Alphabet
Believe
Though
Stands
Thinking
Eye
Characters
Read
Truly
Everyone
Philosophy
Cannot
Open

More quotes by Galileo Galilei

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The surface of the Moon is not smooth, uniform, and precisely spherical as a great number of philosophers believe it to be, but is uneven, rough, and full of cavities and prominences, being not unlike the face of the Earth, relieved by chains of mountains and deep valleys.
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I would beg the wise and learned fathers [of the church] to consider with all diligence the difference which exists between matters of mere opinion and matters of demonstration.
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The greatest wisdom is to get to know oneself.
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Some, merely to contradict what I had said, did not scruple to cast doubt upon things they had seen with their own eyes again and again.
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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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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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But some, besides allegiance to their original error, possess I know not what fanciful interest in remaining hostile not so much toward the things in question as toward their discoverer.
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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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In time you may discover everything that can be discovered, and still your progress will only be progress away from humanity. The distance between you and them can one day become so great that your joyous cry over some new gain could be answered by an universal shriek of horror.
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Well, since paradoxes are at hand, let us see how it might be demonstrated that in a finite continuous extension it is not impossible for infinitely many voids to be found.
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It is surely harmful to souls to make it a heresy to believe what is proved.
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I have never met a man so ignorant that I couldn't learn something from him.
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Science proceeds more by what it has learned to ignore than what it takes into account.
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To excite in us tastes, odors, and sounds I believe that nothing is required in external bodies except shapes, numbers, and slow or rapid movements. ... if ears, tongues, and noses were removed, shapes and numbers and motions would remain, but not odors or tastes or sounds.
Galileo Galilei
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I am inclined to think that the authority of Holy Scripture is intended to convince men of those truths which are necessary for their salvation, which, being far above man's understanding, can not be made credible by any learning, or any other means than revelation by the Holy Spirit.
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All truths are easy to understand once they are discovered the point is to discover them.
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The Universe is a grand book which cannot be read until one first learns to comprehend the language and become familiar with the characters in which it is composed. It is written in the language of mathematics.
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Philosophy itself cannot but benefit from our disputes, for if our conceptions prove true, new achievements will be made if false, their refutation will further confirm the original doctrines.
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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.
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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.
Galileo Galilei