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Pictures, propagated by motion along the fibers of the optic nerves in the brain, are the cause of vision.

Isaac Newton

Plato is my friend, Aristotle is my friend, but my greatest friend is truth.
ISAAC NEWTON

Friendship Truth
The synthesis consists in assuming the Causes discovered and established as Principles, and by them explaining the Phænomena proceeding from them, and proving the explanations.
ISAAC NEWTON

Cause Discover Establishment Explanation Principle Proceed Prove Science Synthesis
I keep the subject of my inquiry constantly before me, and wait till the first dawning opens gradually, by little and little, into a full and clear light.
ISAAC NEWTON

Clear Constant Inquiry Light Subject
My principal method for defeating error and heresy is by establishing the truth. One purposes to fill a bushel with tares, but if I can fill it first with wheat, I may defy his attempts.
ISAAC NEWTON

Attempt Defeat Error Establishment Method Purpose Truth Wheat
What goes up must come down.
ISAAC NEWTON

Come Deep Life One Liner Reality Science
Yet one thing secures us what ever betide, the scriptures assures us that the Lord will provide.
ISAAC NEWTON

Assure Lord Provide Scripture Secure
If I have ever made any valuable discoveries, it has been due more to patient attention, than to any other talent.
ISAAC NEWTON

Attention Discover Inspirational Patience Success Talent Value
The moon gravitates towards the earth and by the force of gravity is continually drawn off from a rectilinear motion and retained in its orbit.
ISAAC NEWTON

Earth Gravity Moon Motion Orbit Science
If the experiments which I urge be defective, it cannot be difficult to show the defects; but if valid, then by proving the theory, they must render all objections invalid.
ISAAC NEWTON

Defective Difficult Experiment Invalid Objection Prove Show Theory
Every body persists in a state of rest or of uniform motion in a straight line, unless it is compelled to change that state by forces having impact upon it.
ISAAC NEWTON

Body Change Force Impact Motion Persist State Straight Uniform
I have explained the phenomena of the heavens and of our sea by the force of gravity, but I have not yet assigned a cause to gravity.
ISAAC NEWTON

Assign Cause Explanation Force Gravity Heaven Sea
Nothing can be divided into more parts than it can possibly be constituted of. But matter (i.e. finite) cannot be constituted of infinite parts.
ISAAC NEWTON

Infinite Matter Possible Science
I see I have made my self a slave to philosophy.
ISAAC NEWTON

Myself Philosophy Slave
Nature is pleased with simplicity. And nature is no dummy.
ISAAC NEWTON

Dummy Minimalism Nature Please Simplicity
The motions which the planets now have could not spring from any natural cause alone, but were impressed by an intelligent agent.
ISAAC NEWTON

Agent Alone Cause Impression Intelligence Natural Planet Science Spring
Therefore to the same natural effects we must, as far as possible, assign the same causes.
ISAAC NEWTON

Assign Cause Effect Natural Possible

Pictures, propagated by motion along the fibers of the optic nerves in the brain, are the cause of vision.

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Pictures, propagated by motion along the fibers of the optic nerves in the brain, are the cause of vision.

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