How little do they see what is, who frame
Their hasty judgement upon that which seems!

People calculate too much and think too little.

But I know that all the things I do know are very small compared with the things that I don't know

Many people know so little about what is beyond their short range of experience. They look within themselves - and find nothing! Therefore they conclude that there is nothing outside themselves either.

Evidence shows that we do much less thinking than we believe we do — except, of course, when we think about it.

We think too much and feel too little.

Ah, children of the sunlight and the gaslight, how little you know of the world in which you live!

Almost never do they realize that they, too, 'know things' they have learned in their relations with the world.

Little minds are wounded by the smallest things.

And because what we are doing is so horrifying, we tend not to think of it much.

How little does the earth self know life and its extent! How little, indeed, ought it to know for its own tranquility!

The more I know, the better I realize how little we know.

How little do my countrymen know what precious blessings they are in possession of, and which no other people on earth enjoy!

Where all think alike, no one thinks very much.