Combining Texts

All the ideas for 'On Duties ('De Officiis')', 'Letters to Jourdain' and 'Foundations of Geometry'

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11 ideas

1. Philosophy / A. Wisdom / 1. Nature of Wisdom
21405 Cicero sees wisdom in terms of knowledge, but earlier Stoics saw it as moral [Cicero, by Long]
1. Philosophy / A. Wisdom / 2. Wise People
20871 Unfortunately we choose a way of life before we are old enough to think clearly [Cicero]
5. Theory of Logic / F. Referring in Logic / 1. Naming / a. Names
8447 In 'Etna is higher than Vesuvius' the whole of Etna, including all the lava, can't be the reference [Frege]
5. Theory of Logic / F. Referring in Logic / 1. Naming / b. Names as descriptive
8448 Any object can have many different names, each with a distinct sense [Frege]
6. Mathematics / A. Nature of Mathematics / 2. Geometry
13472 Hilbert aimed to eliminate number from geometry [Hilbert, by Hart,WD]
6. Mathematics / B. Foundations for Mathematics / 3. Axioms for Geometry
9546 Euclid axioms concerns possibilities of construction, but Hilbert's assert the existence of objects [Hilbert, by Chihara]
18742 Hilbert's formalisation revealed implicit congruence axioms in Euclid [Hilbert, by Horsten/Pettigrew]
18217 Hilbert's geometry is interesting because it captures Euclid without using real numbers [Hilbert, by Field,H]
19. Language / A. Nature of Meaning / 7. Meaning Holism / a. Sentence meaning
8446 We understand new propositions by constructing their sense from the words [Frege]
19. Language / B. Reference / 4. Descriptive Reference / a. Sense and reference
8449 Senses can't be subjective, because propositions would be private, and disagreement impossible [Frege]
23. Ethics / D. Deontological Ethics / 3. Universalisability
6031 The essence of propriety is consistency [Cicero]