A child-like man is not a man whose development has been arrested; on the contrary, he is a man who has given himself a chance of continuing to develop long after most adults have muffled themselves in the cocoon of middle-aged habit and convention.
A learned blockhead is a greater blockhead than an ignorant one.
A man profits more by the sight of an idiot than by the orations of the learned.
A person is never happy except at the price of some ignorance.
Being ignorant is not so much a shame as being unwilling to learn.
Better to ask a question than to remain ignorant.
Better to be ignorant of a matter than half know it.
Everybody is ignorant — only on different subjects.
Have the courage to be ignorant of a great number of things, in order to avoid the calamity of being ignorant of everything.
He was so learned that he could name a horse in nine languages; so ignorant that he bought a cow to ride on.
I am an agnostic; I do not pretend to know what many ignorant men are sure of.
I am not ashamed to confess I am ignorant of what I do not know.
I do not believe in the collective wisdom of individual ignorance.
I do not pretend to know where many ignorant men are sure — that is all that agnosticism means.
I would rather have my ignorance than another man's knowledge, because I have so much of it.
If ignorance is bliss, why aren't more people jumping up and down for joy.
If you think education is expensive, try ignorance.
Ignorance and inconsideration are the two great causes of the ruin of mankind.
Ignorance breeds monsters to fill up the vacancies of the soul that are unoccupied by the verities of knowledge.
Ignorance doesn't kill you, but it makes you sweat a lot.