There is no fundamental difference among our ideas on different things.
There can be no fundamental difference among our ideas on different things becasuse:
- One is an idea, if the one gives another one and if both of them are equal (1=1). For instance 1=1 as an idea, but the 1 on right hand side is not equal to the 1 on the left hand side as non-ideal.
- One is a “non-ideal†matter, if one gives another one and if both of them are not equal (one is not equal to another one).