Do circulate in new groups. Restricting your social environment to the same small group produces boredom, dullness, dissatisfaction; equally important, remember that your success-building program requires that you become an expert in understanding people. Trying to learn all there is to know about people by studying one small group is like trying to master mathematics by reading one short book. Make new friends, join new organizations, enlarge your social orbit. Then too, variety in people, like variety in anything else, adds spice to life and gives it a broader dimension. It’s good mind food.