A problem for Descartes is that if substances are by definition ultimate and totally independent of one another, then
A)how can God create them?
B)how can we know them?
C)how can they interact?
D)how can they be real?

Question

Quizplus · Accepted Answer

According to Descartes, substances cannot interact with one another as they are completely independent and self-sufficient. This introduces the problem of how things like the mind and body can interact with one another, which is known as the mind-body problem.

A Problem for Descartes Is That If Substances Are by Definition