Unit1 Is There Life on Earth? 1
Unit2 The Dinner Party 18
Unit3 Lessons from Jefferson 34
Unit4 My First Job 51
Unit5 The Professor and the Yo-Yo 70
Unit6 The Making of a Surgeon 92
Unit7 There s Only Luck 109
Unit8 Honesty:Is It Going out of Style? 124
Unit9 What Is Intelligence,Anyway? 141
Unit10 Profits of Praise 158