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Freedom of the press is taking a beating under our current administration , and that 's a scary thing . For a railroad , that 's a tough business . Well , to borrow a popular mathematical explanation , it 's clearly vacuous ( : Actually , that 's a tough one , the faculty here is outstanding . They can make a lot of noise but they only speak to the choir and that 's a small choir these days . When you start going after the mid market , that 's a tough model . For many , retirement means the freedom to pick and choose how we spend the rest of our lives , that 's the exciting part . Hum dee hum , that 's a tough one , better ask my local GOP party chairman about that . " Design with a conscience : that 's the take-home message of this important , provocative book . And that 's a small experiment . Gee , that 's a tough one .