Without opposites, we cannot think. How are we to explain the idealist if we do not contrast him with the realist? How can we understand the ponderer without the serene one, the passionate without the reserved? Often, we try to dissolve the opposites to escape this tension. This book, however, takes a different approach. It explores the boundaries of our thinking and presents ten contrasting characters with razor-sharp thoughts and illustrations that are unforgettable.