Nature Quote by Ptolemy
““From all this we concluded that the first two divisions of theoretical philosophy should rather be called guesswork than knowledge, theology because of its completely invisible and ungraspable nature, physics because of the unstable and unclear nature of the matter; hence there is no hope that philosophers will ever be agreed about them; and that only mathematics can provide sure and unshakable knowledge to its devotees, provided one approaches it rigorously. For its kind of proof proceeds by indisputable methods, namely arithmetic and geometry (tr. Toomer, p. 6).””
About This Quote
Source Book: The History of Philosophy, Toomer translation, 1906
Philosophy divides into guesswork (theology, physics) and rigorous mathematics.
In simple terms: Some fields rely on speculation; math is certain.
Key Takeaway
Recognize limits of speculative fields.
Themes
philosophy
epistemology
science
mathematics
Mood
analytical
inquisitive
Type
theoretical
educational
When to use this quote
- academic debate
- teaching philosophy
- research planning
- science policy
Key Concepts
knowledge certainty
methodology
disciplinary limits
Questions to Reflect On
- How can speculative fields improve rigor?
- What role does mathematics play in other sciences?
A Different Perspective
Mathematics also has assumptions and limits.
![“It has been said that the French revolution resulted from philosophy, and it is not without reason that philosophy has been called Weltweisheit [world wisdom]; for it is not only truth in and for itself, as the pure essence of things, but also truth in its living form as exhibited in the affairs…” quote by Georg Wilhelm Friedrich Hegel](https://sms4smile.com/quotes/img-quotes/906/georg-wilhelm-friedrich-hegel_french-revolution_it-has-been-said-that-the-french-revolut_297624.jpg)
