You can own a billion books and still be ignorant.

It is usually unbearably painful to read a book by an author who knows way less than you do, unless the book is a novel.

Among other possibilities, money was invented to make it possible for a foolish man to control wise men; a weak man, strong men; a child, old men; an ignorant man, knowledgeable men; and for a dwarf to control giants.

Most adults are knowledgeable to a child, but ignorant for their age.

Knowing a little about something sometimes gets in the way of knowing a lot about it.

Education is guaranteed to mitigate ignorance, not to eradicate stupidity.

Some things are made funny to some people by their ignorance.

Ignorance has its own advantages.

Unfortunately, most people need to know a lot of what they do not know to know how little they know.