Ignorance might be bliss for the ignorant, but for the rest of us it's a right fucking pain in the arse :)

To know yourself is to forget yourself.

No matter how much we ask after the truth, self-awareness is often unpleasant. We do not feel kindly toward the Truthsayer.

We are almost always less or more competent than we believe ourselves to be. The unconscious,however, knows who we really are.

As in friendship so in love, we are often happier from ignorance than from knowledge.

painful knowledge is better than blissful ignorance

Knowing ourselves, we are beautiful; in self-ignorance, we are ugly.

There is not anything that can so suddenly flood the mind with shame as the conviction of ignorance, yet we are all ignorant of nearly everything there is to be known.

The doorstep to the temple of wisdom is a knowledge of our own ignorance.

We don't know much about our current selves, do we?

There are too many things we do not wish to know about ourselves.

Avoidable human misery is more often caused not so much by stupidity as by ignorance, particularly our ignorance about ourselves.

It is worse still to be ignorant of your ignorance.

Most people confuse “self-knowledge” with knowledge of their conscious ego personalities.