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

Galileo Galilei

By denying scientific principles, one may maintain any paradox.
GALILEO GALILEI

Deny Maintain Principle Science Truth
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
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
I give infinite thanks to God, who has been pleased to make me the first observer of marvelous things.
GALILEO GALILEI

God Infinite Marvelous Please Thanful
The nature of the human mind is such that unless it is stimulated by images of things acting upon it from without, all remembrance of them passes easily away.
GALILEO GALILEI

Acting Human Mind Nature Remember
Knowing thyself, that is the greatest wisdom.
GALILEO GALILEI

Greatness Inspiratioal One Liner Self Love Wisdom
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
Names and attributes must be accommodated to the essence of things, and not the essence to the names, since things come first and names afterwards.
GALILEO GALILEI

Accomodation Attribute Essence Name Science
The vain presumption of understanding everything can have no other basis than never having understood anything.
GALILEO GALILEI

Science Understand Vain
It is a beautiful and delightful sight to behold the body of the Moon.
GALILEO GALILEI

Beautiful Body Delight Moon Sight
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

Bunch Dependent Grapes Planet Revolve Sun Universe
Holy Scripture could never lie or err…its decrees are of absolute and inviolable truth.
GALILEO GALILEI

Absolute Holy Lie Scripture Truth
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
God is known by nature in his works, and by doctrine in his revealed word.
GALILEO GALILEI

Doctrine God Nature Reveal Work
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
You cannot teach a person something he does not already know, you can only bring what he does know to his awareness.
GALILEO GALILEI

Aware Knowledge Teaching

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

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

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