Reading, after a certain age, diverts the mind too much from its creative pursuits. Any man who reads too much and uses his own brain too little falls into lazy habits of thinking.

Reading, after a certain age, diverts the mind too much from its creative pursuits. Any man who reads too much and uses his own brain too little falls into lazy habits of thinking. — ALBERT EINSTEIN

When we read, another person thinks for us: we merely repeat his mental process. It is the same as the pupil, in learning to write, following with his pen the lines that have been pencilled by the teacher. Accordingly, in reading, the work of thinking is, for the greater part, done for us. This is why we are consciously relieved when we turn to reading after being occupied with our own thoughts. But, in reading, our head is, however, really only the arena of some one else's thoughts. And so it happens that the person who reads a great deal — that is to say, almost the whole day, and recreates himself by spending the intervals in thoughtless diversion, gradually loses the ability to think for himself; just as a man who is always riding at last forgets how to walk. Such, however, is the case with many men of learning: they have read themselves stupid. For to read in every spare moment, and to read constantly, is more paralysing to the mind than constant manual work...

When we read, another person thinks for us: we merely repeat his mental process. In learning to write, the pupil goes over with his pen what the teacher has outlined in pencil: so in reading; the greater part of the work of thought is already done for us. This is why it relieves us to take up a book after being occupied with our own thoughts. And in reading, the mind is, in fact, only the playground of another’s thoughts. So it comes about that if anyone spends almost the whole day in reading, and by way of relaxation devotes the intervals to some thoughtless pastime, he gradually loses the capacity for thinking; just as the man who always rides, at last forgets how to walk. This is the case with many learned persons: they have read themselves stupid.

The person who reads too much and uses his brain too little will fall into lazy habits of thinking..

Just as one spoils the stomach by overfeeding and thereby impairs the whole body, so can one overload and choke the mind by giving it too much nourishment. For the more one reads the fewer are the traces left of what one has read; the mind is like a tablet that has been written over and over. Hence it is impossible to reflect; and it is only by reflection that one can assimilate what one has read. If one reads straight ahead without pondering over it later, what has been read does not take root, but is for the most part lost.

Any man who reads too much and uses his own brain too little falls into lazy habits of thinking. — ALBERT EINSTEIN

In short, our gentleman became so caught up in reading that he spent his nights reading from dusk till dawn and his days reading from sunrise to sunset, and so with too little sleep and too much reading his brains dried up, causing him to lose his mind. His fantasy filled with everything he had read in his books, enchantments as well as combats, battles, challenges, wounds, courtings, loves, torments, and other impossible foolishness, and he became so convinced in his imagination of the truth of all the countless grandiloquent and false inventions he read that for him no history in the world was truer. He would say that El Cid Ruy Díaz4 had

Should you ever intend to dull the wits of a young man and to incapacitate his brains for any kind of thought whatever, then you cannot do better than give him Hegel to read. For these monstrous accumulations of words that annul and contradict one another drive the mind into tormenting itself with vain attempts to think anything whatever in connection with them, until finally it collapses from sheer exhaustion. Thus any ability to think is so thoroughly destroyed that the young man will ultimately mistake empty and hollow verbiage for real thought. A guardian fearing that his ward might become too intelligent for his schemes might prevent this misfortune by innocently suggesting the reading of Hegel.

People stop thinking when they cease to read.

When one reads hurriedly and nervously, having in mind written tests and examinations, one's brain becomes encumbered with a lot of bric-a-brac for which there seems to be little use.

I know people who read interminably, book after book, from page to page, and yet I
should not call them 'well-read people'. Of course they 'know' an immense amount; but
their brain seems incapable of assorting and classifying the material which they have
gathered from books. They have not the faculty of distinguishing between what is
useful and useless in a book; so that they may retain the former in their minds and if
possible skip over the latter while reading it, if that be not possible, then — when once
read — throw it overboard as useless ballast. Reading is not an end in itself, but a means
to an end. Its chief purpose is to help towards filling in the framework which is made
up of the talents and capabilities that each individual possesses. Thus each one procures
for himself the implements and materials necessary for the fulfilment of his calling in
life, no matter whether this be the elementary task of earning one's daily bread or a
calling that responds to higher human aspirations. Such is the first purpose of reading.
And the second purpose is to give a general knowledge of the world in which we live.
In both cases, however, the material which one has acquired through reading must not
be stored up in the memory on a plan that corresponds to the successive chapters of the
book; but each little piece of knowledge thus gained must be treated as if it were a little
stone to be inserted into a mosaic, so that it finds its proper place among all the other
pieces and particles that help to form a general world-picture in the brain of the reader.
Otherwise only a confused jumble of chaotic notions will result from all this reading.
That jumble is not merely useless, but it also tends to make the unfortunate possessor of
it conceited. For he seriously considers himself a well-educated person and thinks that
he understands something of life. He believes that he has acquired knowledge, whereas
the truth is that every increase in such 'knowledge' draws him more and mo

Reading is merely a surrogate for thinking for yourself; it means letting someone else direct your thoughts. Many books, moreover, serve merely to show how many ways there are of being wrong, and how far astray you yourself would go if you followed their guidance. You should read only when your own thoughts dry up, which will of course happen frequently enough even to the best heads; but to banish your own thoughts so as to take up a book is a sin against the holy ghost; it is like deserting untrammeled nature to look at a herbarium or engravings of landscapes.

(advice to his children)
Much reading is an oppression of the mind, and extinguishes the natural candle, which is the reason of so many senseless scholars in the world.