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

Self-knowledge can be painful, but not half so damaging as self-ignorance.

Self-knowledge — the bitterest knowledge of all and also the kind we cultivate least: what is the use of catching ourselves out, morning to night, in the act of illusion, pitilessly tracing each act back to its root, and losing case after case before our own tribunal?

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.

Because the ignorant do not know themselves, they never know for what they are lacking. Some would be sages if they did not believe they were so already.

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.

It takes considerable knowledge just to realize the extent of our own ignorance.

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.

It is not good for our efforts at self-realization to know the opinions other people have of us. It is difficult or perhaps impossible to be ourselves if we are known.