Ignorance is the night of the mind, but a night without moon and star.

There is but one evil, ignorance.

The more one thinks, the more one feels the hopeless immensity of man's 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.

Desire, ignorance, and inequality-this is the trinity of bondage.

It is always advisable to perceive clearly our ignorance.