The only good is knowledge, and the only evil is ignorance.
Entire ignorance is not so terrible or extreme an evil, and is far from being the greatest of all; too much cleverness and too much learning, accompanied with ill bringing-up, are far more fatal.
Opinion is the medium between knowledge and ignorance.
True friendship can afford true knowledge. It does not depend on darkness and 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 is bold and knowledge reserved.
Ignorance of all things is an evil neither terrible nor excessive, nor yet the greatest of all; but great cleverness and much learning, if they be accompanied by a bad training, are a much greater misfortune.
Knowledge slowly builds up what Ignorance in an hour pulls down.
Ignorance is the curse of God; knowledge is the wing wherewith we fly to heaven.
The person you consider ignorant and insignificant is the one who came from God, that he might learn bliss from grief and knowledge from gloom.
Ignorance, the root and stem of all evil.
I prefer tongue-tied knowledge to ignorant loquacity.
Ignorance is never better than knowledge.
Knowledge becomes evil if the aim be not virtuous.
His ignorance was as remarkable as his knowledge.
If knowledge can create problems, it is not through ignorance that we can solve them.
The learning and knowledge that we have, is, at the most, but little compared with that of which we are ignorant.
It is no good to try to stop knowledge from going forward. Ignorance is never better than knowledge.
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.
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.
I wash my hands of those who imagine chattering to be knowledge, silence to be ignorance, and affection to be art.
I would prefer as friend a good man ignorant than one more clever who is evil too.
Science is the father of knowledge, but opinion breeds ignorance.
There are in fact two things, science and opinion; the former begets knowledge, the later ignorance.
It's better to be good than evil, but one achieves goodness at a terrific cost.