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

Galileo Galilei

In questions of science, the authority of a thousand is not worth the humble reasoning of a single individual.
GALILEO GALILEI

Authority Humble Individual Reason Science Worth
To be humane, we must ever be ready to pronounce that wise, ingenious and modest statement ‘I do not know’.
GALILEO GALILEI

Modest Statement Wise
See now the power of truth; the same experiment which at first glance seemed to show one thing, when more carefully examined, assures us of the contrary.
GALILEO GALILEI

Assure Care Contrary Experiement Glance Power Show Truth
The laws of nature are written by the hand of God in the language of mathematics.
GALILEO GALILEI

God Language Law Mathematics Nature Writing
Two truths cannot contradict one another.
GALILEO GALILEI

Contradict One Liner Truth
Nature is relentless and unchangeable, and it is indifferent as to whether its hidden reasons and actions are understandable to man or not.
GALILEO GALILEI

Action Change Hide Indifference Man Nature Reason Understand
You may force me to say what you wish; you may revile me for saying what I do. But it moves.
GALILEO GALILEI

Force Move Science
The earth, in fair and grateful exchange, pays back to the moon an illumination similar to that which it receives from her throughout nearly all the darkest gloom of the night.
GALILEO GALILEI

Darkness Earth exchange Gloom Illuminate Moon Night Receive
If you could see the earth illuminated when you were in a place as dark as night, it would look to you more splendid than the moon.
GALILEO GALILEI

Darkness Earth Illuminate Moon Night Place
I entertain no doubts as to the truth of the transfinites, which I have recognized with God’s help.
GALILEO GALILEI

Doubt Entertainment God Help Recognize Truth
The deeper I go in considering the vanities of popular reasoning, the lighter and more foolish I find them.
GALILEO GALILEI

Consideration Fools Reason Vanity
In my studies of astronomy and philosophy I hold this opinion about the universe, that the Sun remains fixed in the centre of the circle of heavenly bodies, without changing its place; and the Earth, turning upon itself, moves round the Sun.
GALILEO GALILEI

Astronomy Earth Opinion Philosophy Round Science Study Sun Universe
Where the senses fail us, reason must step in.
GALILEO GALILEI

Failure One Liner Reason Science Sense Step
Being infinitely amazed, so do I give thanks to God, Who has been pleased to make me the first observer of marvelous things, unrevealed to bygone ages.
GALILEO GALILEI

Amaze God Infinite Thankful
It is a beautiful and delightful sight to behold the body of the Moon.
GALILEO GALILEI

Beautiful Body Delight Moon Sight
By denying scientific principles, one may maintain any paradox.
GALILEO GALILEI

Deny Maintain Principle Science Truth

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

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

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