All our knowledge begins with the senses, proceeds then to the understanding, and ends with reason. There is nothing higher than reason.

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

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

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

Pain and foolishness lead to great bliss and complete knowledge, for Eternal Wisdom created nothing under the sun in vain.

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

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

It is the province of knowledge to speak, and it is the privilege of wisdom to listen.

Jealousy is all the fun you think they had.

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