Original sentence: According to Rand's biographer Barbara Branden, Hospers met Rand when she addressed the student body at Brooklyn College.Rand broke with Hospers after he criticized her talk on "Art as Sense of Life" at the American Society of Aesthetics at Harvard
Edited sentence: According to one Rand biographer, Barbara Branden, Hospers met Rand when she addressed the student body at Brooklyn College.Rand broke with Hospers after a series of disappointments, culminating in how he behaved in acting as commenter on her talk "Art as Sense of Life" at the American Society of Aesthetics at Harvard