The whole difficulty of philosophy seems to consist in this—from the phenomena of motions to investigate the forces of nature, and then from these forces to demonstrate the other phenomena.
Laws of motion and gravity
From 'Principia Mathematica', Preface to the First Edition
1687
Found in 1 providers: grok
Cross Reference
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"I shall not mingle conjectures with certainties."
Strange & Unusual"The best way to understand is by examples."
Controversial"Gravity must be caused by some agent acting constantly according to certain laws; but whether this agent be material or immaterial, I have left to the consideration of my readers."
Strange & Unusual"What goes up must come down."
Humorous"If I am anything, which I highly doubt, it is due to hard work."
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