If the quote comes from a book, then the cover links to more information on that book.
An idea that is developed and put into action is more important than an idea that exists only as an idea.
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.
Lateral Thinking. An Introduction
Humour is by far the most significant activity of the human brain.
The Mechanism Of Mind
If you don’t design your future, someone or something else will design it for you. The past is not a sufficient blueprint for the future. You can analyse the past but you have to design the future.
If you never change you mind, why have one.
How To Have A Beautiful Mind
If you wait for opportunities to occur, you will be one of the crowd.
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.
It is not the ideas we do not have that block our thinking but the ideas that we do have.
PO: Beyond Yes And No
Logic will never change emotion or perception.
Most of the mistakes in thinking are inadequacies of perception rather than mistakes of logic.
The analysis of data will not by itself produce new ideas.