Home / Authors / Galileo Galilei

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.

Filter quotes by topic

All Science Ifs Men Mathematics Earth Knows Reason Universe Written Believe Language Moving Holy Mean Opinion Sun Thinking Book Eye Firsts

Famous Galileo Galilei Quotes

“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.”

Believe May Different Speak I Believe Holy Understood Bible Deny Pious Prudent Holy Bible Untruth True Meaning

Book:Men of physics: Galileo Galilei, his life and his works

Source: Men of physics: Galileo Galilei, his life and his works

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

Believe Soul Orthodox Heresy

Author:Galileo Galilei

“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.”

Thinking Believe Book Different Philosophy Character Eye Written Alphabet

Author:Galileo Galilei

“The Divine intellect indeed knows infinitely more propositions [than we can ever know]. But with regard to those few which the human intellect does understand, I believe that its knowledge equals the Divine in objective certainty.”

Knows Believe Humans Doe I Believe Divine Regard Intellect Objectives Certainty Propositions

Author:Galileo Galilei

“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.”

Ifs Believe Body I Believe Sound Numbers Movement Taste Shapes Ears Tongue Noses Rapids Odor

Author:Galileo Galilei

“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?”

Ifs Believe Mean Eye Effects Poet Seasons Philosopher Experiments Historian

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

“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.”

Believe Earth Faces Numbers Moon Mountain Philosopher Surface Chains Rough Valleys Uniforms Smooth Relieved Prominence

Book:Men of physics: Galileo Galilei, his life and his works

Source: Men of physics: Galileo Galilei, his life and his works

“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.”

Men Believe Mean Spirit I Believe Voice Holy Salvation Intention Holy Spirit Credible

Author:Galileo Galilei