I have never met a man so ignorant that I couldn't learn something from him.

I have never met a man so ignorant that I couldn't learn something from him.

Ignorance never settles a question.

Ignorance never settles a question.

One of the keys to happiness is a bad memory.

One of the keys to happiness is a bad memory.

Gross ignorance: 144 times worse than ordinary ignorance.

Gross ignorance: 144 times worse than ordinary ignorance.

Ignorance gives one a large range of probabilities.

Ignorance gives one a large range of probabilities.

The greatest obstacle to discovery is not ignorance - it is the illusion of knowledge.

The greatest obstacle to discovery is not ignorance - it is the illusion of knowledge.

Ignorance is not innocence but sin.

Ignorance is not innocence but sin.

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.

If ignorance is bliss, there should be more happy people.

If ignorance is bliss, there should be more happy people.