Combining Philosophers

All the ideas for Archimedes, Stephen Houlgate and George Santayana

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5 ideas

1. Philosophy / C. History of Philosophy / 1. History of Philosophy

8000	He who is ignorant of the history of philosophy is doomed to repeat it [Santayana, by MacIntyre]

6. Mathematics / B. Foundations for Mathematics / 3. Axioms for Geometry

13007

Archimedes defined a straight line as the shortest distance between two points [Archimedes, by Leibniz]

7. Existence / A. Nature of Existence / 6. Criterion for Existence

18521

The criterion of existence is the possibility of action [Santayana]

22. Metaethics / A. Ethics Foundations / 1. Nature of Ethics / b. Defining ethics

21788

The moral will is self-determining, but the ethical will is met in society [Houlgate]

22. Metaethics / A. Ethics Foundations / 2. Source of Ethics / e. Human nature

23060

The good is not relative, but is rooted in facts about human needs [Santayana]