It is impossible to make people understand their ignorance for it requires knowledge to perceive it and therefore he that can perceive it hath it not.

His ignorance was as remarkable as his knowledge.

In expanding the field of knowledge we but increase the horizon of ignorance.

Science is the father of knowledge but opinion breeds ignorance.

Knowledge slowly builds up what Ignorance in an hour pulls down.

Vanity of science. Knowledge of physical science will not console me for ignorance of morality in time of affliction but knowledge of morality will always console me for ignorance of physical science.

The small part of ignorance that we arrange and classify we give the name of knowledge.

The greatest obstacle to discovery is not ignorance - it is the illusion of knowledge.

Dogmatism and skepticism are both in a sense absolute philosophies one is certain of knowing the other of not knowing. What philosophy should dissipate is certainty whether of knowledge or ignorance.

It is an infantile superstition of the human spirit that virginity would be thought a virtue and not the barrier that separates ignorance from knowledge.

Ignorance more frequently begets confidence than does knowledge: it is those who know little and not those who know much who so positively assert that this or that problem will never be solved by science.

The recipe for perpetual ignorance is: Be satisfied with your opinions and content with your knowledge.

The doorstep to the temple of wisdom is a knowledge of our own ignorance.

The greater our knowledge increases the more our ignorance unfolds.

Beware of false knowledge it is more dangerous than ignorance.

We live on an island surrounded by a sea of ignorance. As our island of knowledge grows so does the shore of our ignorance.

Even knowledge has to be in the fashion and where it is not it is wise to affect ignorance.

It is harder to conceal ignorance than to acquire knowledge.

They say a little knowledge is a dangerous thing but it's not one half so bad as a lot of ignorance.

Our knowledge can only be finite while our ignorance must necessarily be infinite.

The only good is knowledge and the only evil is ignorance.

Humility and knowledge in poor clothes excel pride and ignorance in costly attire.

Suppose that we are wise enough to learn and know - and yet not wise enough to control our learning and knowledge so that we use it to destroy ourselves? Even if that is so knowledge remains better than ignorance.

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