Zusammenfassung der Ressource
Knowledge of the
external world
- Direct Realism
- the world is exactly as we perceive it
- objects exist as we perceive them - there
are no primary and secondary qualities
- Issues
- illusions for NDR
- hallucinations for PDR
- relative sense experiences
- Representative Realism
- there is a physical world, external to
our perception, that we indirectly
experience through our direct
experience of sense data
- able to overcome problems of DR
whilst still maintaining the existence
of a real world
- the primary qualities of an object, which
are measurable and independent of the
perceiver induces the secondary qualities
which are subjective to the perceiver
- primary qualities:
shape, size,
solidity
- secondary
qualities: colour,
smell, taste
- Issues
- variability/solidity
- causality
- resemblance
- inseparability
- support comes from the existence of
time lags and appeals to the science of
light waves
- Idealism
- physical objects do not exist in
themselves and that objects are just
bundles of sensations
- All of our experiences are subjective
- therefore 'esse set percipi'
- God feeds us with coherent, logical
sensations, which are the basis of what
we call 'rules of nature'
- Issues
- we cannot experience God, therefore empirically he does not exist
- common sense
- solipsism
- lack of proof either way