Wall Street executive Greg Smith spoke to Stanford students about his time at the Goldman Sachs, why he quit and the ethics of Wall Street investment firms. He resigned from Goldman Sachs in March of 2012, and wrote an op-ed in the New York Times decrying the firm’s change in culture and loss of client focus. He has since written a book called Why I Left Goldman Sachs: A Wall Street Story. He also responded to questions from the audience.