much of what other people know isn’t worth knowing.

The trouble with the world is not that people know too little; it's that they know so many things that just aren't so.

The problem with experts is that they do not know what they do not know.

It isn't what we don't know that gives us trouble, it's what we know that ain't so. - Will Rogers The

The only reason people do not know much is because they do not care to know. They are incurious. Incuriousity is the oddest and most foolish failing there is.

Ignorance lies not in the things you don't know, but in the things you know that ain't so.

People not only don't know what's happening to them, they don't even know that they don't know.

The only reason people do not know much is because they do not care to know.

It's not what we don't know that hurts. It's what we know that ain't so.

The less people know, the more stubbornly they know it.

It’s not what we don’t know that hurts us,” people say. “It’s what we believe is true that isn’t that does the damage.” There

It is more important to know that you don't know, than to know what you know.

It isn't that they can't see the solution. It is that they can't see the problem.

The problem in my life and other people's lives is not the absence of knowing what to do but the absence of doing it.