... which is to say fear, greed and other primitive instincts drive your decision making. (monevator.com)
The most primitive instinct of a man to protect his woman will be triggered by childbirth and when he is powerless to do this, with the medics taking over, he can easily go into a traumatic shutdown reaction. (premierchristianity.com)
HERD INSTINCTS, GROUP THINK amplify the worst primitive instincts in all of us. (religion.blogs.cnn.com)