Book One 1
Unit 1 How to Improve Your Study Habits 1
Unit 2 Sailing Round the World 12
Unit 3 The Present 23
Unit 4 Turning off TV: A Quiet Hour 31
Unit 5 A Miserable, Merry Christmas 40
Unit 6 Sam Adams, Industrial Engineer 47
Unit 7 The Sampler 57
Unit 8 You Go Your Way, I'll Go Mine 65
Unit 9 The Brain 73
Unit 10 Going Home 81
Book Two 89
Unit 1 Is There Life on Earth? 89
Unit 2 The Dinner Party 99
Unit 3 Lessons from Jefferson 109
Unit 4 My First Job 120
Unit 5 The Professor and the Yo-Yo 129
Unit 6 The Making of a Surgeon 138
Unit 7 There Is Only Luck 146
Unit 8 Honesty:Is It Going out of Style? 154
Unit 9 What Is Intelligence, Anyway? 161
Unit 10 Profits of Praise 168
Book Three 175
Unit 1 A Brush with the Law 175
Unit 2 The Woman Who Would Not Tell 192
Unit 3 Why I Teach 203
Unit 4 Lady Hermits Who Are Down But Not out 213
Unit 5 The Day Mother Cried 226
Unit 6 A Day's Wait 239
Unit 7 The Shelter 253
Unit 8 Daydream a Little 267
Unit 9 The Death of Hitler 279
Unit 10 The Fantastic Spurt in Technology 290
Book Four 302
Unit 1 The Big Bucks the Easy Way 302
Unit 2 Deer and the Energy Cycle 313
Unit 3 Why Do we Believe That the Earth Is Round? 323
Unit 4 Jim Thorpe 335
Unit 5 To Lie or Not to Lie--The Doctor's Dilemma 344
Unit 6 How to Mark a Book 356
Unit 7 The Luncheon 367
Unit 8 The New Caves 376
Unit 9 Journey West 383
Unit 10 Why People Work 395