Fearful AsymmetryPaul Broca made the most significant discovery in nineteenth century human biology when he found that speech resides within the left frontal lobe of the human brain. As a young surgeon working at the hospice at Bictre on the outskirts of Paris a repository for the criminal, the insane, the indigent, and the sick Broca had to overcome derision, acrimony, personal attacks, vindictiveness, and prevailing doctrines before his findings were accepted. Based