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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

Let me think – I wonder if an anvil will drop like an apple?
ISAAC NEWTON

Apple Drops Science Wonder
A man may imagine things that are false, but he can only understand things that are true, for if the things be false, the apprehension of them is not understanding.
ISAAC NEWTON

False Human Nature Imagination Man Understand
All knowledge and understanding of the Universe was no more than playing with stones and shells on the seashore of the vast imponderable ocean of truth.
ISAAC NEWTON

Knowledge Play Sea Shell Stone Truth Understand Universe
In the absence of any other proof, the thumb alone would convince me of God’s existence.
ISAAC NEWTON

Absence Convince Existence God Proof Thumb
Hypotheses should be subservient only in explaining the properties of things but not assumed in determining them, unless so far as they may furnish experiments.
ISAAC NEWTON

Determination Experiment Explanation Hypothesis Property
When two forces unite, their efficiency double.
ISAAC NEWTON

Efficiency Force Inspirational One Liner Science Team Work Unity
Nature is pleased with simplicity. And nature is no dummy.
ISAAC NEWTON

Dummy Minimalism Nature Please Simplicity
Physics, beware of metaphysics.
ISAAC NEWTON
We are not to consider the world as the body of God: he is an uniform being, void of organs, members, or parts; and they are his creatures, subordinate to him, and subservient to his will.
ISAAC NEWTON

Body Consider Creature God Member Organ
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
God is the same God, always and everywhere. He is omnipresent not virtually only, but also substantially, for virtue cannot subsist without substance.
ISAAC NEWTON

Always God Substain Substance Virtual Viture
All my discoveries have been made in answer to prayer.
ISAAC NEWTON

Discover Prayer
If others would think as hard as I did, then they would get similar results.
ISAAC NEWTON

Believe Business Positive Result Success Thinking
An object in motion tends to remain in motion along a straight line unless acted upon by an outside force.
ISAAC NEWTON

Force Motion Object Science Straight
The instinct of brutes and insects can be the effect of nothing else than the wisdom and skill of a powerful ever-living agent.
ISAAC NEWTON

Agent Effect Insect Instinct Live Powerful Skill Wisdom
Every particle of matter is attracted by or gravitates to every other particle of matter with a force inversely proportional to the squares of their distances.
ISAAC NEWTON

Attraction Distance Force Gravity Particle Proportional Science
Therefore, the causes assigned to natural effects of the same kind must be, so far as possible, the same.
ISAAC NEWTON

Cause Effect Natural Possible 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
Centripetal force is the force by which bodies are drawn from all sides, are impelled, or in any way tend, toward some point as to a center.
ISAAC NEWTON

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

Friendship Truth
Every action has an equal and opposite reaction.
ISAAC NEWTON

Action Deep Inspirational Opposite Reaction Science
My powers are ordinary. Only my application brings me success.
ISAAC NEWTON

Application Inspirational Ordinary Power Success
An object that is at rest will tend to stay at rest. An object that is in motion will tend to stay in motion.
ISAAC NEWTON

Motion Object Science Stay
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
I can calculate the motion of heavenly bodies, but not the madness of people.
ISAAC NEWTON

Body Calculate Funny Heaven Madness Motion People
Religion and philosophy are to be preserved distinct. We are not to introduce divine revelations into philosophy, nor philosophical opinions into religion.
ISAAC NEWTON

Distinct Divine Introduce Opinion Philosophy Religion
Truth is ever to be found in the simplicity, and not in the multiplicity and confusion of things.
ISAAC NEWTON

Confusion Finding Simplicity Truth

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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