All you need in this life is ignorance and confidence, and then success is sure.

All you need in this life is ignorance and confidence, and then success is sure.

If you think education is expensive, try ignorance.

If you think education is expensive, try ignorance.

Nothing in all the world is more dangerous than sincere ignorance and conscientious stupidity.

Nothing in all the world is more dangerous than sincere ignorance and conscientious stupidity.

I do not pretend to know where many ignorant men are sure -- that is all that agnosticism means.

I do not pretend to know where many ignorant men are sure -- that is all that agnosticism means.

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

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

Ignorance gives one a large range of probabilities.

Ignorance gives one a large range of probabilities.

Ignorance seldom vaults into knowledge, but passes into it
through an intermediate state of obscurity, even as night into read more

Ignorance seldom vaults into knowledge, but passes into it
through an intermediate state of obscurity, even as night into
day through twilight.

Ignorance is the soil in which belief in miracles grows.

Ignorance is the soil in which belief in miracles grows.

There are many things of which a wise man might wish to be ignorant

There are many things of which a wise man might wish to be ignorant