Descartes discovered one absolutely"undoubtable" truth, it was_____?
A. You exist, when you think.
B. I think, therefore I exist.
C. I exist, therefore I think.
According to John Locke, all our knowledge come from?
A. Other ideas
B. Experience
C. Imagination
Which of the following is NOT one of the psychological operations mentioned with Freud?
A. Paranoia
B. Defense Mechanism
C. Repression