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Physics, beware of metaphysics.

Isaac Newton

Absolute, true and mathematical time, of itself, and from its own nature flows equably without relation to anything external.
ISAAC NEWTON

External Flow Mathematics Nature
Plato is my friend, Aristotle is my friend, but my greatest friend is truth.
ISAAC NEWTON

Friendship Truth
The description of right lines and circles, upon which geometry is founded, belongs to mechanics. Geometry does not teach us to draw these lines, but requires them to be drawn.
ISAAC NEWTON

Description Geometry Mathematics Requirement Teaching
This most beautiful system of the sun, planets and comets, could only proceed from the counsel and dominion of an intelligent and powerful being.
ISAAC NEWTON

Beautiful Intelligence Planet Powerful Proceed Sun System
To me there has never been a higher source of earthly honor or distinction than that connected with advances in science.
ISAAC NEWTON

Advance Connection Earth Honour Science
I feign no hypotheses.
ISAAC NEWTON

Hypothesis Mathematics
Tis much better to do a little with certainty & leave the rest for others that come after than to explain all things by conjecture without making sure of any thing.
ISAAC NEWTON

Explanation Leaving
No old Men (excepting Dr. Wallis) love Mathematicks.
ISAAC NEWTON

Mathematics Men Old
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
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
As a blind man has no idea of colors, so we have no idea of the manner by which the all-wise God perceives and understands all things.
ISAAC NEWTON

Blind Color God Ideas Man Manner Understand Wise
If others would think as hard as I did, then they would get similar results.
ISAAC NEWTON

Believe Business Positive Result Success Thinking
Truth is ever to be found in the simplicity, and not in the multiplicity and confusion of things.
ISAAC NEWTON

Confusion Finding Simplicity Truth
I see I have made my self a slave to philosophy.
ISAAC NEWTON

Myself Philosophy Slave
Godliness consists in the knowledge love & worship of God, Humanity in love, righteousness & good offices towards man.
ISAAC NEWTON

Consist God Knowledge Love Man Worship
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

Physics, beware of metaphysics.

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Physics, beware of metaphysics.

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