Unit One Is There Life on Earth 1
Unit Two The Dinner Party 14
Unit Three Lessons from Jefferson 23
Unit Four My First Job 37
Unit Five The Professor and the Yo-Yo 45
Unit Six The Making of a Surgeon 55
Unit Seven There's Only Luck 63
Unit Eight Honesty:Is It Going out of Style? 70
Unit Nine What Is Intelligence,Anyway? 88
Unit Ten Profits of Praise 97