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Galileo Galilei

Galileo Galilei Quotes

Physicist

Galileo Galilei, an Italian physicist, astronomer, mathematician, and philosopher, is considered the father of modern science. He was born on February 15, 1564, and died on January 8, 1642. Galileo made significant contributions to the fields of physics, astronomy, mathematics, and philosophy. He discovered the four moons of Jupiter through his telescope, supporting Copernicus' heliocentric model, and proposed the law of free fall and other scientific theories.

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Famous Galileo Galilei Quotes

“Sì perché l'autorità dell'opinione di mille nelle scienze non val per una scintilla di ragione di un solo, sì perché le presenti osservazioni spogliano d'autorità i decreti de' passati scrittori, i quali se vedute l'avessero, avrebbono diversamente determinato. For in the sciences the authority of thousands of opinions is not worth as much as one tiny spark of reason in an individual man. Besides, the modern observations deprive all former writers of any authority, since if they had seen what we see, they would have judged as we judge.”

Reason Science Opinion Authority Judgment Observation

Book:Frammenti e lettere

Source: Frammenti e lettere

“Where the senses fail us, reason must step in.”

Reason Steps Failing Perception Senses

Book:Dialogues Concerning Two New Sciences

Source: Dialogues Concerning Two New Sciences

“Nature is relentless and unchangeable, and it is indifferent as to whether its hidden reasons and actions are understandable to man or not.”

Men Reason Action Indifferent Relentless Unchangeable

Author:Galileo Galilei

“It vexes me when they would constrain science by the authority of the Scriptures, and yet do not consider themselves bound to answer reason and experiment.”

Reason Answers Authority Bounds Scripture Experiments Experimentation Constrain Vex

Author:Galileo Galilei

“The number of people that can reason well is much smaller than those that can reason badly. If reasoning were like hauling rocks, then several reasoners might be better than one. But reasoning isn't like hauling rocks, it's like, it's like racing, where a single, galloping Barbary steed easily outruns a hundred wagon-pulling horses.”

People Ifs Wells Reason Might Numbers Rocks Hundred Horse Reasoning Racing Pulling Wagons Outrun Galloping

Author:Galileo Galilei

“In regard to the philosophers, if they be true philosophers, i.e., lovers of truth, they should not be irritated that the earth moves. Rather, if they realize that they have held a false belief, they should thank those have shown them the truth; and if their opinion stands firm that the earth doesn't move, they will have reason to boast than be angered.”

Ifs Should Reason Earth Moving Belief Realizing Opinion Lovers Regard Philosopher Being True Firm Boast Irritated Stand Firm

Author:Galileo Galilei

“I am certainly interested in a tribunal in which, for having used my reason, I was deemed little less than a heretic. Who knows but men will reduce me from the profession of a philosopher to that of historian of the Inquisition!”

Knows Men Littles Reason Used Philosopher Profession Historian Heretic Inquisition Tribunals

Author: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.”

Men Reason Individual Opinion Authority Tiny Sparks

Author:Galileo Galilei

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

Author:Galileo Galilei

“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.”

“I do not think it is necessary to believe that the same God who has given us our senses, reason, and intelligence wished us to abandon their use, giving us by some other means the information that we could gain through them.”

Thinking Giving Believe Mean Reason Use Given Information Gains Atheist Senses Abandon

Book:Thus Spoke Galileo: The Great Scientist's Ideas and Their Relevance to the Present Day

Source: Thus Spoke Galileo: The Great Scientist's Ideas and Their Relevance to the Present Day

“Nature . . . is inexorable and immutable; she never transgresses the laws imposed upon her, nor cares a whit whether her abstruse reasons and methods of operations are understandable to men.”

Men Reason Care Law Nature Method Operations Inexorable

Author:Galileo Galilei

“That sculpture is more admirable than painting for the reason that it contains relief and painting does not is completely false. ... Rather, how much more admirable the painting must be considered, if having no relief at all, it appears to have as much as sculpture!”

Ifs Doe Reason Painting Relief Sculpture Admirable

Author:Galileo Galilei