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We see only the simple motion of descent, since that other circular one common to the Earth, the tower, and ourselves remains imperceptible.

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

Demonstrate Discussion Experiment Natural Problem Science Scripture Thinking
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.
GALILEO GALILEI

Atheist Believe God Intellectual Obligation Reason Sense
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
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

Authority Individual Man Opinion Reason Science Spark Worth
Philosophy itself cannot but benefit from our disputes, for if our conceptions prove true, new achievements will be made; if false, their refutation will further confirm the original doctrines.
GALILEO GALILEI

Achievement Benefit Conception Dispute Philosophy Prove
All truths are easy to understand once they are discovered; the point is to discover them.
GALILEO GALILEI

Discover Easy Point Truth 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
I’ve loved the stars too fondly to be fearful of the night.
GALILEO GALILEI

Fear Love Night Stars
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
Facts which at first seem improbable will, even on scant explanation, drop the cloak which has hidden them and stand forth in naked and simple beauty.
GALILEO GALILEI

Explanation Fact Hide Naked Science
Holy Scripture could never lie or err…its decrees are of absolute and inviolable truth.
GALILEO GALILEI

Absolute Holy Lie Scripture 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
Holy Scripture could never lie or err…its decrees are of absolute and inviolable truth.
GALILEO GALILEI

Absolute Holy Lie Scripture Truth
Long experience has taught me this about the status of mankind with regard to matters requiring thought.
GALILEO GALILEI

Experience Mankind Matter Regard Requirement Status Teaching
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

We see only the simple motion of descent, since that other circular one common to the Earth, the tower, and ourselves remains imperceptible.

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We see only the simple motion of descent, since that other circular one common to the Earth, the tower, and ourselves remains imperceptible.

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