Combining Texts

All the ideas for 'Isagoge ('Introduction')', '23: Book of Isaiah' and 'Against the Professors (six books)'

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9 ideas

1. Philosophy / D. Nature of Philosophy / 2. Invocation to Philosophy
7493 Let us reason together, saith the Lord [Isaiah]
3. Truth / A. Truth Problems / 5. Truth Bearers
6021 It is only when we say a proposition that we speak truly or falsely [Sext.Empiricus]
5. Theory of Logic / E. Structures of Logic / 1. Logical Form
6020 'Man is a rational mortal animal' is equivalent to 'if something is a man, that thing is a rational mortal animal' [Sext.Empiricus]
8. Modes of Existence / D. Universals / 1. Universals
15034 Are genera and species real or conceptual? bodies or incorporeal? in sensibles or separate from them? [Porphyry]
14. Science / A. Basis of Science / 1. Observation
6026 How can you investigate without some preconception of your object? [Sext.Empiricus]
23. Ethics / B. Contract Ethics / 9. Contractualism
6032 Right actions, once done, are those with a reasonable justification [Sext.Empiricus]
26. Natural Theory / A. Speculations on Nature / 4. Mathematical Nature
1517 The tektraktys (1+2+3+4=10) is the 'fount of ever-flowing nature' [Sext.Empiricus]
27. Natural Reality / E. Cosmology / 1. Cosmology
7608 The world is established, and cannot be moved [Isaiah]
28. God / A. Divine Nature / 1. God
7343 Beside me there is no God [Isaiah]