A science that can endure the ravages of two such distempers as behaviorism and psychoanalysis and recover without permanent disfigurement must have a lusty constitution.
I found this important because he's actively challenging behaviorism and psychoanalysis again, but also saying that psychology has a chance at being a legitimate science. We know that eventually it does, but Jastrow was just a hopeful scientist pushing his field into the limelight.