Men can acquire knowledge, but not wisdom. Some of the greatest fools ever known were learned men.

Knowledge fills a large brain; it merely inflates a small one.

Knowledge becomes wisdom only after it has been put to practical use.

It is nothing for one to know something unless another knows you know it.

I would have the studies elective. Scholarship is to be created not by compulsion, but by awakening a pure interest in knowledge. The wise instructor accomplishes this by opening to his pupils precisely the attractions the study has for himself. The marking is a system for schools, not for the college; for boys, not for men; and it is an ungracious work to put on a professor.

The trouble with the world is not that people know too little, but that they know so many things that ain't so.

We are in fact convinced that if we are ever to have pure knowledge of anything, we must get rid of the body and contemplate things by themselves with the soul by itself. It seems, to judge from the argument, that the wisdom which we desire and upon which we profess to have set our hearts will be attainable only when we are dead and not in our lifetime.

The essence of knowledge is, having it, to apply it; not having it, to confess your ignorance.

Know-how will surpass guess-how.

As the biggest library if it is in disorder is not as useful as a small but well-arranged one, so you may accumulate a vast amount of knowledge but it will be of far less value to you than a much smaller amount if you have not thought it over for yourself.