Edward De Bono

"Everyone has the right to doubt everything as often as he pleases and the duty to do it at least once. No way of looking at things is too sacred to be reconsidered. No way of doing things is beyond improvement."

"If you never change your mind, why have one?"

"A discussion should be a genuine attempt to explore a subject rather than a battle between competing egos."

"Unhappiness is best defined as the difference between our talents and our expectations."

"A memory is what is left when something happens and does not completely unhappen."

"The system will always be defended by those countless people who have enough intellect to defend but not quite enough to innovate."

"A good listener is very nearly as attractive as a good talker. You cannot have a beautiful mind if you do not know how to listen."

"It is better to have enough ideas for some of them to be wrong, than to be always right by having no ideas at all."

"The image that concerns most people is the reflection they see in other people's minds."

"An idea that is developed and put into action is more important than an idea that exists only as an idea."