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

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

Ignorance and inconsideration are the two great causes of the ruin of mankind

Ignorance and inconsideration are the two great causes of the ruin of mankind

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

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

Unintelligent people always look for a scapegoat.

Unintelligent people always look for a scapegoat.

The living man who does not learn, is dark, dark, like one
walking in the night.

The living man who does not learn, is dark, dark, like one
walking in the night.

The evil that is in the world almost always comes of ignorance, and good intentions may do as much harm read more

The evil that is in the world almost always comes of ignorance, and good intentions may do as much harm as malevolence if they lack understanding.

Being ignorant is not so much a shame, as being unwilling to learn.

Being ignorant is not so much a shame, as being unwilling to learn.

Naivete in grownups is often charming; but when coupled with vanity it is indistinguishable from stupidity.

Naivete in grownups is often charming; but when coupled with vanity it is indistinguishable from stupidity.

I do not pretend to know where many ignorant men are sure -- that is all that agnosticism means.

I do not pretend to know where many ignorant men are sure -- that is all that agnosticism means.