The scholar

The scholar, who really does nothing but 'trundle' books [trundle: to drag around on a rolling cart] — the philologist at a modest assessment about 200 a day — finally loses altogether the ability to think for himself. If he does not trundle he does not think. He replies to a stimulus (— a thought he has read) when he thinks — finally he does nothing but react. The scholar expends his entire strength in affirmation and denial, in criticizing what has already been thought — he himself no longer thinks . . . The instinct for self-defence has in his case become soft; otherwise he would defend himself against books. The scholar — a dêcadent [i.e., decaying mentally]. — This I have seen with my own eyes: nature's gifted, rich and free already in their thirties 'read to ruins', mere matches that have to be struck if they are to ignite — emit 'thoughts'. — Early in the morning at the break of day, in all the freshness and dawn of one's strength, to read a book — I call that vicious!

—Nietzsche, Ecce Homo