Study without desire spoils the memory, and it retains nothing that it takes in.

Reading without reflecting is like eating without digesting.

If the study to which you apply yourself has a tendency to weaken your affections and to destroy your taste for those simple pleasures in which no alloy can possibly mix, then that study is certainly unlawful, that is to say, not befitting the human mind.

A person in whom the desire for this knowledge has disappeared is like one who has lost his appetite for healthy food, or who prefers feeding on clay to eating bread.

Continual intellectual study results in vanity and the false satisfaction of an undigested knowledge.

If a person studies too much and exhausts his reflective powers, he will be confused, and will not be able to apprehend even that which had been within the power of his apprehension. For the powers of the body are all alike in this respect.

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.

What is the use of studying much when I’m to see nothing at all?

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

If you study a lot because you are worried that others will think badly of you for being ignorant and you'll feel stupid, this is a serious mistake.

if we never let our mind wander or be bored for a moment, we pay a price — poor memory, mental fog, and fatigue.

I HAVE already hinted that the dainty, squeamish, and fastidious taste acquired by a surfeit of idle reading, had not only rendered our hero unfit for serious and sober study, but had even disgusted him in some degree with that in which he had hitherto indulged.

Prayer without study would be empty. Study without prayer would be blind.

There is a growing body of evidence that suggests that if we never let our mind wander or be bored for a moment, we pay a price — poor memory, mental fog, and fatigue.