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.

Knowledge of what is possible is the beginning of happiness.

Knowledge is power. Information is liberating. Education is the premise of progress, in every society, in every family.

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

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

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

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

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

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