| The claim that it is circular is dependant on the premises that
1. One must exist to think and
2. The phrase draw the conclusion "I think" from "I am"
If thinking is a property of only those who are, then it's not circular, because the conclusion is drawn from the premise. The premise can't necessarily be drawn from the conclusion, because there are things that are that don't think (assuming thinking is a property of only life). |