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    galileo galilei Quotes

    (T)he increase of known truths stimulates the investigation, establishment, and growth of the arts.
    — Galileo Galilei
    tags: truth  growth 
     
    The sun, with all he planets revolving around it, and depending on it, can still ripen a bunch of grapes as though it had nothing else in the universe to do.
    — Galileo Galilei
    tags: universe 
     
    Passion is the genesis of genius.
    — Galileo Galilei
    tags: genius  passion 
     
    Mathematics is the key and door to the sciences.
    — Galileo Galilei
    tags: key  mathematics 
     
    To be humane, we must ever be ready to pronounce that wise, ingenious and modest statement 'I do not know'.
    — Galileo Galilei
    tags: wise 
     
    It is a beautiful and delightful sight to behold the body of the Moon.
    — Galileo Galilei
    tags: beautiful  body  moon 
     
    In the long run my observations have convinced me that some men, reasoning preposterously, first establish some conclusion in their minds which, either because of its being their own or because of their having received it from some person who has their entire confidence, impresses them so deeply that one finds it impossible ever to get it out of their heads.
    — Galileo Galilei
    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
    tags: men  authority  opinion  worth 
     
    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
    tags: miracle  god  wings  ignorance 
     
    In questions of science, the authority of a thousand is not worth the humble reasoning of a single individual.
    — Galileo Galilei
    The greatest wisdom is to get to know oneself.
    — Galileo Galilei
    tags: oneself  wisdom 
     
    You cannot teach a man anything, you can only help him find it within himself.
    — Galileo Galilei
    tags: men  help 
     
    The doctrine that the earth is neither the center of the universe nor immovable, but moves even with a daily rotation, is absurd, and both philosophically and theologically false, and at the least an error of faith.
    — Galileo Galilei
    tags: earth  faith  universe  absurd 
     
    The book of nature is written in the language of mathematics.
    — Galileo Galilei
    The vain presumption of understanding everything can have no other basis than never having understood anything. For anyone who had ever experienced just once the perfect understanding of one single thing, and had truly tasted how knowledge is accomplished, would recognize that of the infinity of other truths he understands nothing.
    — Galileo Galilei
    E pur si muove. "Albeit It does move". (That's what Galileo purportedly muttered after torturers forced him to recant his theory that the earth orbits the sun.)
    — Galileo Galilei
    tags: earth 
     
    You may force me to say what you wish; you may revile me for saying what I do. But it moves.
    — Galileo Galilei
    tags: saying 
     
    We see only the simple motion of descent, since that other circular one common to the Earth, the tower, and ourselves remains imperceptible. There remains perceptible to us only that of the stone, which is not shared by us; and, because of this, sense shows it as by a straight line, always parallel to the tower, which is built upright and perpendicular upon the terrestrial surface.
    — Galileo Galilei
    tags: earth 
     
    God is known by nature in his works, and by doctrine in his revealed word.
    — Galileo Galilei
    tags: nature  work  god 
     
    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
    tags: universe 
     
    All truths are easy to understand once they are discovered; the point is to discover them.
    — Galileo Galilei
    tags: truth 
     
    I do not feel obliged to believe that the same God who has endowed us with sense, reason, and intellect has intended us to forego their use.
    — Galileo Galilei
    tags: believe  god 
     
    I've loved the stars too fondly to be fearful of the night.
    — Galileo Galilei
    tags: star  night 
     
    Mathematics is the language with which God has written the universe.
    — Galileo Galilei
    Two truths cannot contradict one another.
    — Galileo Galilei
    tags: truth 
     
    Knowing thyself, that is the greatest wisdom.
    — Galileo Galilei
    tags: knowing  wisdom 
     
    I have never met a man so ignorant that I couldn't learn something from him.
    — Galileo Galilei
    tags: men  learn 
     
    We cannot teach people anything; we can only help them discover it within themselves.
    — Galileo Galilei
    tags: people  help 
     
    I abjure with a sincere heart and unfeigned faith, I curse and detest the said errors and heresies, and generally all and every error and sect contrary to the Holy Catholic Church.
    — Galileo Galilei
    tags: heart  faith  church  holy 
     
    With regard to matters requiring thought: the less people know and understand about them, the more positively they attempt to argue concerning them.
    — Galileo Galilei
    tags: people 
     
    The theologians also should not be irritated. For if they find that this opinion is false, then they would be free to condemn it; and if they discover that it is true, they ought to thank those who have opened the way to finding the true sense of the Scriptures and who have prevented them from falling into the grave scandal of condemning a true proposition.
    — Galileo Galilei
    tags: true  opinion 
     
    Who would dare assert that we know all there is to be known?
    — Galileo Galilei
    Measure what is measurable, and make measurable what is not so.
    — Galileo Galilei
    Holy Scripture could never lie or err...its decrees are of absolute and inviolable truth.
    — Galileo Galilei
    tags: truth  lies  holy 
     
    If I were again beginning my studies, I would follow the advice of Plato and start with mathematics.
    — Galileo Galilei
    Infinities and indivisibles transcend our finite understanding, the former on account of their magnitude, the latter because of their smallness; Imagine what they are when combined.
    — Galileo Galilei
    I think that in the discussion of natural problems we ought to begin not with the Scriptures, but with experiments, and demonstrations.
    — Galileo Galilei
    tags: problem 
     
    Science proceeds more by what it has learned to ignore than what it takes into account.
    — Galileo Galilei
    There are those who reason well, but they are greatly outnumbered by those who reason badly.
    — Galileo Galilei
    But what exceeds all wonders, I have discovered four new planets and observed their proper and particular motions, different among themselves and from the motions of all the other stars; and these new planets move about another very large star [Jupiter] like Venus and Mercury, and perchance the other known planets, move about the Sun. As soon as this tract, which I shall send to all the philosophers and mathematicians as an announcement, is finished, I shall send a copy to the Most Serene Grand Duke, together with an excellent spyglass, so that he can verify all these truths.
    — Galileo Galilei
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    galileo galilei
    Birth    : February 15, 1564
    Death  : January 8, 1642
    Occupation  : Physicist