<P> Instincts of the Herd in Peace and War is the title of an influential book by English surgeon Wilfred Trotter, published in 1916 . Based on the ideas of Gustave Le Bon, it was very influential in the development of group dynamics and crowd psychology, and the propaganda of Edward Bernays . It was also cited by Q.D. Leavis in her book Fiction And The Reading Public . </P> <P> From Instincts of the Herd in Peace and War (1942 ed., pg. 90): </P>

Instincts of the herd in war and peace