as a few books or many—every one of them dogeared and dilapidated； shaken and loosened by continual use； marked and scribbled in from front to back。 This man owns books。
Why is marking up a book indispensable to reading it？ First； it keeps you awake。 And I don’t mean merely conscious； I mean wide awake。 In the second place； reading； if it is active； is thinking； and thinking lends to express itself in words； spoken or written。 The marked book is usually the tbought…through book。 Finally writing helps you remember the thoughts you had； or the thoughts the author expressed。
If reading is to acplish anything more than passing time； it must be active。 You can’t let your eyes glida across the Jinns of a book and e up with an understanding of what you have read。 The books you read for pleasure cad be read in a state of relaxation； and nothing is lost。 But a great book rich in ideas and beauty； a book that raises and tries to answer great fundamental questions； demands the most active reading of which you are capable。 If； when you’ve finished reading a book the pages are filled with your notes； you know that you read actively。
怎樣在書上寫批註（3）
But you may ask； why is writing necessary？ Well； the physical act of writing； with your own hand； brings words； and sentences more sharply before your mind and proseryes them better in your memory。 To set down your reaction to important words and sentences you have read； and the questions they have raised in your mind； is to preserve those reactions and sharpen those questions。
Even if you wrote on a scratch pad； and threw timpaper away when you had finished writing； your grasp of the book would be surer。 But you don’t have to throw the paper away。 The margins （top and bottom； as welt as side）； the end…paper