Combining Philosophers

All the ideas for Parmenides, Sophocles and Derek Parfit

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41 ideas

2. Reason / A. Nature of Reason / 1. On Reason
1502 Parmenides was much more cautious about accepting ideas than his predecessors [Simplicius on Parmenides]
2. Reason / E. Argument / 7. Thought Experiments
5515 Imaginary cases are good for revealing our beliefs, rather than the truth [Parfit]
7. Existence / A. Nature of Existence / 3. Being / a. Nature of Being
449 Being is not divisible, since it is all alike [Parmenides]
448 No necessity could produce Being either later or earlier, so it must exist absolutely or not at all [Parmenides]
447 Being must be eternal and uncreated, and hence it is timeless [Parmenides]
7. Existence / A. Nature of Existence / 3. Being / d. Non-being
445 The realm of necessary non-existence cannot be explored, because it is unknowable [Parmenides]
1503 There is no such thing as nothing [Parmenides]
7. Existence / A. Nature of Existence / 3. Being / f. Primary being
21820 Parmenides at least saw Being as the same as Nous, and separate from the sensed realm [Parmenides, by Plotinus]
7. Existence / B. Change in Existence / 1. Nature of Change
452 All our concepts of change and permanence are just names, not the truth [Parmenides]
7. Existence / C. Structure of Existence / 2. Reduction
5516 Reduction can be by identity, or constitution, or elimination [Parfit, by PG]
9. Objects / E. Objects over Time / 1. Objects over Time
1504 Something must be unchanging to make recognition and knowledge possible [Aristotle on Parmenides]
10. Modality / A. Necessity / 5. Metaphysical Necessity
444 The first way of enquiry involves necessary existence [Parmenides]
10. Modality / A. Necessity / 8. Transcendental Necessity
450 Necessity sets limits on being, in order to give it identity [Parmenides]
11. Knowledge Aims / B. Certain Knowledge / 4. The Cogito
451 Thinking implies existence, because thinking depends on it [Parmenides]
12. Knowledge Sources / B. Perception / 1. Perception
1506 Parmenides treats perception and intellectual activity as the same [Theophrastus on Parmenides]
12. Knowledge Sources / C. Rationalism / 1. Rationalism
3058 Only reason can prove the truth of facts [Parmenides]
16. Persons / B. Nature of the Self / 5. Self as Associations
3539 Personal identity is just causally related mental states [Parfit, by Maslin]
16. Persons / D. Continuity of the Self / 1. Identity and the Self
5514 Psychologists are interested in identity as a type of person, but philosophers study numerical identity [Parfit]
16. Persons / D. Continuity of the Self / 2. Mental Continuity / b. Self as mental continuity
1393 One of my future selves will not necessarily be me [Parfit]
5521 If my brain-halves are transplanted into two bodies, I have continuity, and don't need identity [Parfit]
5522 Over a period of time what matters is not that 'I' persist, but that I have psychological continuity [Parfit]
16. Persons / D. Continuity of the Self / 4. Split Consciousness
1392 If we split like amoeba, we would be two people, neither of them being us [Parfit]
5519 It is fine to save two dying twins by merging parts of their bodies into one, and identity is irrelevant [Parfit]
5520 If two humans are merged surgically, the new identity is a purely verbal problem [Parfit]
16. Persons / D. Continuity of the Self / 5. Concerns of the Self
1391 Concern for our own lives isn't the source of belief in identity, it is the result of it [Parfit]
16. Persons / E. Rejecting the Self / 4. Denial of the Self
5518 It doesn't matter whether I exist with half my components replaced (any more than an audio system) [Parfit]
23. Ethics / C. Virtue Theory / 3. Virtues / e. Honour
7811 Sophoclean heroes die terrible deaths when they oppose the new Athenian values [Sophocles, by Grayling]
23. Ethics / E. Utilitarianism / 1. Utilitarianism
9762 We should focus less on subjects of experience, and more on the experiences themselves [Parfit]
26. Natural Theory / A. Speculations on Nature / 6. Early Matter Theories / e. The One
555 People who say that the cosmos is one forget that they must explain movement [Aristotle on Parmenides]
226 The one is without any kind of motion [Parmenides]
5081 There could be movement within one thing, as there is within water [Aristotle on Parmenides]
1509 The one can't be divisible, because if it was it could be infinitely divided down to nothing [Parmenides, by Simplicius]
20900 Defenders of the One say motion needs the void - but that is not part of Being [Parmenides, by Aristotle]
1505 Reason sees reality as one, the senses see it as many [Aristotle on Parmenides]
453 Reality is symmetrical and balanced, like a sphere, with no reason to be greater one way rather than another [Parmenides]
26. Natural Theory / A. Speculations on Nature / 6. Early Matter Theories / f. Ancient elements
1792 He taught that there are two elements, fire the maker, and earth the matter [Parmenides, by Diog. Laertius]
27. Natural Reality / A. Classical Physics / 1. Mechanics / a. Explaining movement
5115 It is feeble-minded to look for explanations of everything being at rest [Aristotle on Parmenides]
27. Natural Reality / C. Space / 1. Void
13217 The void can't exist, and without the void there can't be movement or separation [Parmenides, by Aristotle]
27. Natural Reality / D. Time / 3. Parts of Time / a. Beginning of time
22918 What could have triggered the beginning [of time and being]? [Parmenides]
27. Natural Reality / E. Cosmology / 1. Cosmology
1794 He was the first to discover the identity of the Morning and Evening Stars [Parmenides, by Diog. Laertius]
1791 He was the first person to say the earth is spherical [Parmenides, by Diog. Laertius]