Ideas of Martin Heidegger, by Theme

[German, 1889 - 1976, Born at Messkirch. Professor at the University of Freiburg for most of his life.]

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1. Philosophy / D. Nature of Philosophy / 5. Aims of Philosophy / b. Philosophy as transcendent
Later Heidegger sees philosophy as more like poetry than like science [Polt]
When philosophy makes itself intelligible, it commits suicide
1. Philosophy / D. Nature of Philosophy / 5. Aims of Philosophy / d. Philosophy as puzzles
Perhaps the aim of philosophy is to abolish sham problems
2. Reason / A. Nature of Reason / 2. Logos
'Logos' really means 'making something manifest' [Polt]
3. Truth / A. Truth Problems / 9. Rejecting Truth
Heidegger says truth is historical, and never absolute [Polt]
5. Theory of Logic / C. Ontology of Logic / 2. Platonism in Logic
The idea of an atemporal realm of validity is as implausible as medieval theology
7. Existence / A. Nature of Existence / 3. Being / a. Nature of Being
For us, Being is constituted by awareness of other sorts of Being
7. Existence / A. Nature of Existence / 3. Being / h. Dasein (being human)
Heidegger turns to 'Being' to affirm the uniqueness of humans in the world [Gray]
Dasein is ahead of itself in the world, and alongside encountered entities
'Dasein' expresses not 'what' the entity is, but its being
The word 'dasein' is used to mean 'the manner of Being which man possesses', and also the human creature [Cooper,DE]
'Dasein' is Being which is laid claim to, and which matters to its owner [Cooper,DE]
I say the manifestation of Being needs humans, and humans only exist as reflected in Being
7. Existence / A. Nature of Existence / 7. Criterion for Existence
Ontology is possible only as phenomenology
9. Objects / D. Essence of Objects / 1. Essences of Objects
Heidegger seeks a non-traditional concept of essence as 'essential unfolding' [Polt]
11. Knowledge Aims / A. Knowledge / 2. Understanding
Propositions don't provide understanding, because the understanding must come first [Polt]
12. Knowledge Sources / B. Perception / 4. Sense Data / d. Sense-data problems
There are no raw sense-data - our experiences are of the sound or colour of something
12. Knowledge Sources / B. Perception / 5. Interpretation
Perceived objects always appear in a context
15. Nature of Minds / A. Nature of Mind / 4. Other Minds / c. Knowing other minds
If we work and play with other people, they are bound to be 'Dasein', intelligent agents [Cooper,DE]
16. Persons / A. Concept of a Person / 4. Persons as Agents
My active existence is defined by being able to say 'I can'
16. Persons / B. Nature of the Self / 7. Self and Body / a. Self needs body
Certainty that I will die is more basic to my existence than the Cogito
16. Persons / E. Rejecting the Self / 4. Denial of the Self
Everyone is other, and no one is himself
18. Thought / A. Modes of Thought / 3. Emotions
Moods are more fundamentally revealing than theories - as when fear reveals a threat [Polt]
22. Metaethics / A. Value / 1. Nature of Value / b. Fact and value
We do not add value to naked things; its involvement is disclosed in understanding it
23. Ethics / F. Existentialism / 4. Boredom
Culture is now dominated by boredom, so universal it is unnoticed [Aho]
23. Ethics / F. Existentialism / 5. Existence-Essence
Being what it is (essentia) must be conceived in terms of Being (existence)
23. Ethics / F. Existentialism / 6. Authentic Self
Heidegger says we must either choose an inauthentic hero, or choose yourself as hero [Critchley]
Dasein is always only that which it has chosen to be