"Rex Barks shows us that the value of diagramming lies...in its presentation of a systematic method of identifying the relationships among words in a sentence. To any student who has studied this book and is struggling to identify the function of a word, you need only say, 'Picture the diagram!'" (Foreword by Lisa VanDamme).

"With each new point or each new subject, the child must be getting another example of: 'This is how to think. This is what is involved. This is what the mind should be doing.' [...] Teaching is a form of communicating thinking. After countless examples of good communication of thinking, it becomes very easy to abstract the common denominators, at which point the student can become an independent thinker."

"We are children only once, and then only for a few brief years. But these are the most impressionable years of a lifetime. Never again will the world and everything in it be so eternally new, so filled with wonder. Never again will physical, mental, spiritual growth be so natural and unavoidable. During these years, habits become ingrained, tastes are developed, personality takes form. The child's whole being is geared toward learning. He instinctively reaches out for truth and, having no prejudices, seizes upon that which is good, just, beautiful. For these reasons, a child deserves what Walter de la Mare has called 'only the rarest kind of best.' What is best in a book for children? Best books reflect universal truths with clarity and artistry. Such books reveal that man is essentially good and that life is infinitely worth living. They do not deny the existence of evil, but rather emphasize man's thrilling struggle against evil through faith, courage, and perseverance. They awaken the young reader's imagination, call forth his laughter as well as his tears, help him understand and to love his fellow man. The reading of such books constitutes a rich heritage of experience which is every child's birthright."