“To attempt an understanding of Muad’Dib without understanding his mortal enemies, the Harkonnens, is to attempt seeing Truth without knowing Falsehood. It is the attempt to see the Light without knowing Darkness. It cannot be. —FROM “MANUAL OF MUAD’DIB” BY THE PRINCESS IRULAN”

“la fe es un estado de ánimo, y que puede ser inducida por la autosugestión”.

“We want not so much a Father but a grandfather in heaven, a God who said of anything we happened to like doing, 'What does it matter so long as they are contented?”

“People often say motivation doesn’t last. Neither does bathing—that’s why we recommend it daily.”

“The heart’s earnest and pure desire is always fulfilled. In my own experience I have often seen this rule verified.”

“God has invested entirely too much in you for you to be comfortable in anything less than you were created to be.”

“I may be wrong in regard to any or all of them; but holding it a sound maxim, that it is better to be only sometimes right, than at all times wrong, so soon as I discover my opinions to be erroneous, I shall be ready to renounce them.”

“Don't use drowsy EYES to look at what Christ used a passionate BLOOD to do for you. Don't use a sluggish LEG to walk towards what Christ used a compassionate FLESH to build for you”

“Government control gives rise to fraud, suppression of Truth, intensification of the black market and artificial scarcity. Above all, it unmans the people and deprives them of initiative, it undoes the teaching of self-help…”

“The quest of the Inner Ring will break your hearts unless you break it. But if you break it, a surprising result will follow. If in your working hours you make the work your end, you will presently find yourself all unawares inside the only circle in your profession that really matters. You will be one of the sound craftsmen, and other sound craftsmen will know it. This group of craftsmen will by no means coincide with the Inner Ring or the Important People or the People in the Know. It will not shape that professional policy or work up that professional influence which fights for the profession as a whole against the public: nor will it lead to those periodic scandals and crises which the Inner Ring produces. But it will do those things which that profession exists to do and will in the long run be responsible for all the respect which that profession in fact enjoys and which the speeches and advertisements cannot maintain. And if in your spare time you consort simply with the people you like, you will again find that you have come unawares to a real inside: that you are indeed snug and safe at the center of something which, seen from without, would look exactly like an Inner Ring. But the difference is that its secrecy is accidental, and its exclusiveness a by-product, and no one was led thither by the lure of the esoteric: for it is only four or five people who like one another meeting to do things that they like. This is friendship. Aristotle placed it among the virtues. It causes perhaps half of all the happiness in the world, and no Inner Ring can ever have it.”

“Positive thinkers use sentences like “I can do it”; “I am qualified for it”; they think of things as possible.”

“Be polite to all, but intimate with few.”

“You will regret many things in life, but you will never regret being too kind or too fair.”

“The ultimate weakness of violence is that it is a descending spiral, begetting the very thing it seeks to destroy. Instead of diminishing evil, it multiplies it. Through violence you may murder the liar, but you cannot murder the lie, nor establish the truth. Through violence you murder the hater, but you do not murder hate. In fact, violence merely increases hate. Darkness cannot drive out darkness; only light can do that. Hate cannot drive out hate; only love can do that.”

“We welcome change and openness; for we believe that freedom and security go together, that the advance of human liberty can only strengthen the cause of world peace.”