Argument Quote by Isaac Newton
“It is indeed a matter of great difficulty to discover, and effectually to distinguish, the true motions of particular bodies from the apparent; because the parts of that immovable space, in which those motions are performed, do by no means come under the observation of our senses. Yet the thing is not altogether desperate; for we have some arguments to guide us, partly from the apparent motions, which are the differences of the true motions; partly from the forces, which are the causes and effects of the true motions.”
About This Quote
Source Treatise on the Motion of Bodies, 1687 (Principia Mathematica)
True motions differ from apparent ones; we must infer hidden dynamics using indirect evidence and reasoning.
In simple terms: Real motion is hidden; we deduce it by analysis.
Use careful observation and logical inference to uncover unseen forces.
Themes
Mood
Type
When to use this quote
- experimental design
- astronomy
- engineering
- education
Key Concepts
Questions to Reflect On
- What hidden forces might influence observed phenomena?
- How can we improve methods to detect unseen motions?
Our senses are limited, so conclusions remain provisional.