Galileo Galilei Quotes

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All truths are easy to understand once they are discovered; the point is to discover them.

Galileo Galilei

Inspirational, Truth, Science

"Angels in the workplace: stories and inspirations for creating a new world of work". Book by Melissa Giovagnoli, 1999.

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The laws of nature are written by the hand of God in the language of mathematics.

Galileo Galilei

Hands, Law, Language

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You can't teach anybody anything, only make them realize the answers are already inside them.

Galileo Galilei

Happiness, Inspirational Life, Answers

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I have never met a man so ignorant that I couldn't learn something from him.

Galileo Galilei

Inspirational, Attitude, Learning

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In the sciences, the authority of thousands of opinions is not worth as much as one tiny spark of reason in an individual man.

Galileo Galilei

Men, Sparks, Tiny

"Discoveries and Opinions of Galileo". Book by Stillman Drake (p. 134 - 135), 1957.

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Knowing thyself, that is the greatest wisdom.

Galileo Galilei

Knowing, Greatest Wisdom, Thyself

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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.

Galileo Galilei

Spiritual, Atheist, Believe

"Letter to the Grand Duchess Christina". Essay by Galileo Galilei, 1615.

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Two truths cannot contradict one another.

Galileo Galilei

Truth, Two

Galileo Galilei (1997). “Galileo on the World Systems: A New Abridged Translation and Guide”, p.103, Univ of California Press

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To be humane, we must ever be ready to pronounce that wise, ingenious and modest statement 'I do not know'.

Galileo Galilei

Wise, Modest, Ready

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To understand the Universe, you must understand the language in which it's written, the language of Mathematics.

Galileo Galilei

Language, Mathematics, Written

349 Copy quote
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.

Galileo Galilei

Inspirational, Funny, Summer

"Sun of gOd: Discover the Self-Organizing Consciousness That Underlies Everything". Book by Gregory Sams (p. 78), May 1, 2009.

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Measure what can be measured, and make measureable what cannot be measured.

Galileo Galilei

Physics

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There are those who reason well, but they are greatly outnumbered by those who reason badly.

Galileo Galilei

Reason, Wells

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Nonetheless, it moves.

Galileo Galilei

Moving

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The greatest wisdom is to get to know oneself.

Galileo Galilei

Greatest Wisdom, Knowing Oneself, Oneself

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The Bible shows the way to go to heaven, not the way the heavens go.

Galileo Galilei

Science, Heaven, Way

217 Copy quote
You cannot teach a person something he does not already know, you can only bring what he does know to his awareness.

Galileo Galilei

Inspirational, Motivational, Education

117 Copy quote
Where the senses fail us, reason must step in.

Galileo Galilei

Perception, Steps, Failing

Galileo Galilei (2010). “Dialogues Concerning Two New Sciences”, p.60, Cosimo, Inc.

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Who would dare assert that we know all there is to be known?

Galileo Galilei

Dare, Knows, Known

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Nothing can be taught to a man, only it's possibly to help him to discover it inside.

Galileo Galilei

Men, Taught, Helping

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Mathematics is the key and door to the sciences.

Galileo Galilei

Knowledge, Science, Keys

Attributed to Galileo Galilei in "Building Fluency Through Practice and Performance" by Timothy Rasinski and Lorraine Griffith (p. 64), 2008.

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God is known by nature in his works, and by doctrine in his revealed word.

Galileo Galilei

Doctrine, Known

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And who can doubt that it will lead to the worst disorders when minds created free by God are compelled to submit slavishly to an outside will? When we are told to deny our senses and subject them to the whim of others? When people devoid of whatsoever competence are made judges over experts and are granted authority to treat them as they please? These are the novelties which are apt to bring about the ruin of commonwealths and the subversion of the state.

Galileo Galilei

Math, People, Judging

248 Copy quote
By denying scientific principles, one may maintain any paradox.

Galileo Galilei

Science, Religion, Principles

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It is surely harmful to souls to make it a heresy to believe what is proved.

Galileo Galilei

Believe, Soul, Orthodox

53 Copy quote

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Galileo Galilei

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Born: February 15, 1564
Died: January 8, 1642
Occupation: Physicist
Cite this Page: Citation

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