Think you of the fact that a deaf person cannot hear. Then, what deafness may we not all possess? What senses do we lack that we cannot see and cannot hear another world all around us?

If you think of yourselves as helpless and ineffectual, it is certain that you will create a despotic government to be your master. The wise despot, therefore, maintains among his subjects a popular sense that they are helpless and ineffectual.

Think on it, Chani: the princess will have the name, yet she'll live as less than a concubine - never to know a moment of tenderness from the man to whom she's bound. While we, Chani, we who carry the name of concubine - history will call us wives.

You aren't thinking or really existing unless you're willing to risk even your own sanity in the judgement of your existence.

I don’t think it’s quite that simple. Some people never observe anything, Life just happens to them. They get by on little more than a kind of dumb persistence, and they resist with anger and resentment anything that might lift them out of that false serenity.

Thinking you know something is a sure way to blind yourself.

Often I must Speak otherwise than I Think. This is Called Diplomacy.

When you think to take determination of your fate into your own hands, that is the moment you can be crushed. Be cautious.

The mistakes (of leaders) are amplified by the numbers who follow them without question. Charismatic leaders tend to build up followings, power structures and these power structures tend to be taken over by people who are corruptible. I don't think that the old saw about 'power corrupts and absolute power corrupts absolutely' is accurate: I think power attracts the corruptible.