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A man only becomes wise when he begins to calculate the approximate depth of his ignorance.

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.

It takes a man to suffer ignorance and smile.

Ignorance is the failure to discriminate between the permanent and the impermanent, the pure and the impure, bliss and suffering, the Self and the non-Self.

To be ignorant of one's ignorance is the malady of the ignorant.

Ignorance is an evil weed, which dictators may cultivate among their dupes, but which no democracy can afford among its citizens.

Most ignorance is vincible ignorance. We don't know because we don't want to know.

It is in his knowledge that man has found his greatness and his happiness, the high superiority which he holds over the other animals who inhabit the earth with him, and consequently no ignorance is probably without loss to him, no error without evil.

The highest form of ignorance is when you reject something you don't know anything about.