Through ignorance of what is good and what is bad, the life of men is greatly perplexed.

Nor am I ashamed, as some are, to confess my ignorance of those matters with which I am unacquainted.

In extraordinary events ignorance of their causes produces astonishment.

Ignorance of impending evil is far better than a knowledge of its approach.

I am not ashamed to confess I am ignorant of what I do not know