... that when you're buying books, you're optimistically thinking you're buying the time to read them.(Paraphrase of Schopenhauer)

The art of not reading is a very important one. It consists in not taking an interest in whatever may be engaging the attention of the general public at any particular time. When some political or ecclesiastical pamphlet, or novel, or poem is making a great commotion, you should remember that he who writes for fools always finds a large public. A precondition for reading good books is not reading bad ones: for life is short.

Buying books would be a good thing if one could also buy the time to read them; but as a rule the purchase of books is mistaken for the appropriation of their contents.

One can never read too little of bad, or too much of good books: bad books are intellectual poison; they destroy the mind.In order to read what is good one must make it a condition never to read what is bad; for life is short, and both time and strength limited.

Reading is thinking with someone else's head instead of ones own.

The result is that much reading robs the mind of all elasticity, as the continual pressure of a weight does a spring, and that the surest way of never having any thoughts of your own is to pick up a book every time you have a free moment.

Reading is nothing more than a substitute for thought of one’s own. . . A man should read only when his own thoughts stagnate at their source, which will happen often enough even with the best of minds. On the other hand, to take up a book for the purpose of scaring away one’s own original thoughts is sin against the Holy Spirit. It is like running away from Nature to look at a museum of dried plants or gaze at a landscape in copperplate.

Reading is nothing more than a substitute for thought of one’s own. . . A man should read only when his own thoughts stagnate at their source, which will happen often enough even with the best of minds. On the other hand, to take up a book for the purpose of scaring away one’s own original thoughts is sin against the Holy Spirit. It is like running away from Nature to look at a museum of dried plants or gaze at a landscape in copperplate. - Arthur Schopenhauer, "On Thinking for Oneself" (1851)

One can never read too little of bad, or too much of good books: bad books are intellectual poison; they destroy the mind.