Combining Philosophers

All the ideas for Anon (Lev), George Santayana and H.Putnam/P.Oppenheim

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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]
     Full Idea: Santayana remarked that he who is ignorant of the history of philosophy is doomed to repeat it.
     From: report of George Santayana (The Life of Reason [1906]) by Alasdair MacIntyre - A Short History of Ethics Ch.1
     A reaction: Santayana's remark seems to have been about history in general, so this is a Macintyre thought. It obviously has a lot of truth, and most great philosophers seem hugely knowledgeable. However, ignorance brings a kind of freedom.
7. Existence / A. Nature of Existence / 6. Criterion for Existence
18521 The criterion of existence is the possibility of action [Santayana]
     Full Idea: The possibility of action ...is the criterion of existence, and the test of substantiality.
     From: George Santayana (The Realm of Matter [1930], p.107), quoted by John Heil - The Universe as We Find It
     A reaction: I rather like this. I think I would say the power is the criterion of existence.
14. Science / D. Explanation / 2. Types of Explanation / j. Explanations by reduction
20653 Six reduction levels: groups, lives, cells, molecules, atoms, particles [Putnam/Oppenheim, by Watson]
     Full Idea: There are six 'reductive levels' in science: social groups, (multicellular) living things, cells, molecules, atoms, and elementary particles.
     From: report of H.Putnam/P.Oppenheim (Unity of Science as a Working Hypothesis [1958]) by Peter Watson - Convergence 10 'Intro'
     A reaction: I have the impression that fields are seen as more fundamental that elementary particles. What is the status of the 'laws' that are supposed to govern these things? What is the status of space and time within this picture?
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]
     Full Idea: The good is by no means relative to opinion, but is rooted in the unconscious and fatal nature of living beings, a nature which predetermines for them the difference between foods and poisons, happiness and misery.
     From: George Santayana (Platonism and the Spiritual Life [1927], p.3), quoted by John Gray - Seven Types of Atheism 6
     A reaction: That is, he concedes that the good is relative to human beings, but that the relevant facts about human beings are not relative. I think he has the correct picture. The key point is that the good is 'rooted' in something, and doesn't just float free.
22. Metaethics / B. Value / 2. Values / g. Love
19941 Thou shalt love thy neighbour as thyself [Anon (Leviticus)]
     Full Idea: Thou shalt love thy neighbour as thyself.
     From: Anon (Lev) (03: Book of Leviticus [c.700 BCE], 19.18)
     A reaction: Most Christians think Jesus originated this thought. Interestingly, this precedes Socrates, who taught a similar idea.