Nothing is more terrible than ignorance in action
Our knowledge can be only finite, while our ignorance must necessarily be infinite.
It might be well for all of us to remember that, while differing widely in the various little bits we know, in our infinite ignorance we are all equal.
Most books are about aspects of human knowledge. Few people write books about human ignorance, despite the fact that there would be much more to write about.
The most violent element in society is ignorance.
For it was my master who taught me not only how very little I knew but also that any wisdom to which I might ever aspire could consist only in realizing more fully the infinity of my ignorance
True ignorance is not the absence of knowledge, but the refusal to acquire it.
His ignorance is encyclopedic.