By ignorance is pride increased; Those most assume who know the least

Pride can destroy a man quicker than ignorance.

Ignorance and power and pride are a deadly mixture, you know.

The whole family of pride and ignorance are incestuous, and mutually beget each other

Fear and realisation of ignorance, strong medicines against stupid pride.

The greatest pride, or the greatest despondency, is the greatest ignorance of one's self.