Robert Sapolsky, professor of biology at Stanford University, research scientist and bestselling author of The Biology of Good and Evil, Notes of a Primate, and Who We Are, talks about the main building blocks of the biological foundation on which our behavior is built - good, bad , stupid and noble deeds. What do a religious fanatic, a criminal maniac and a harmful professor who delights in failing you in an exam have in common?  Are the famous saints really that holy, or is it their brain structure and hormonal profile that has placed halos over their heads? And finally: why, when we have the flu, do our joints ache so much and don’t feel like eating at all? The author examines all these diverse and fascinating questions in detail from a scientific point of view, clarifying them succinctly and with humor and supporting them with the results of large-scale research and experiments.