Knowledge of what is does not open the door directly to what should be.

Knowledge is of two kinds. We know a subject ourselves, or we know where we can find information upon it.

Knowledge is the eye of desire and can become the pilot of the soul.

The aim of education is the knowledge not of facts but of values.

Discussion is an exchange of knowledge an argument an exchange of ignorance.

Knowledge which is acquired under compulsion obtains no hold on the mind.

Jealousy is all the fun you think they had.

If knowledge can create problems, it is not through ignorance that we can solve them.

Real knowledge is to know the extent of one's ignorance.

Knowledge of what is possible is the beginning of happiness.