Life has obliged him to remember so much useful knowledge that he has lost not only his history but his whole original cargo of useless knowledge history languages literatures the higher mathematics or what you will - are all gone.

The university's business is the conservation of useless knowledge and what the university itself apparently fails to see is that this enterprise is not only noble but indispensable as well that society can not exist unless it goes on.

Useless knowledge can be made directly contributory to a force of sound and disinterested public opinion.

Considered now as a possession one may define culture as the residuum of a large body of useless knowledge that has been well and truly forgotten.

A great many things which in times of lesser knowledge we imagined to be superstitious or useless prove today on examination to have been of immense value to mankind.

Between falsehood and useless truth there is little difference. As gold which he cannot spend will make no man rich so knowledge which cannot apply will make no man wise.

Integrity without knowledge is weak and useless and knowledge without integrity is dangerous and dreadful.

Depend upon it there comes a time when for every addition of knowledge you forget something that you knew before. It is of the highest importance therefore not to have useless facts elbowing out the useful ones.

Without knowledge action is useless and knowledge without action is futile.

There is much pleasure to be gained from useless knowledge.