Russell L. Ackoff

Creativity is the ability to identify self-imposed constraints, remove them, and explore the consequences of their removal.

It is far better to do the right thing wrong than to do the wrong thing right.

A problem never exists in isolation; it is surrounded by other problems in space and time. The more of the context of a problem that a scientist can comprehend, the greater are his chances of finding a truly adequate solution.

Successful problem solving requires finding the right solution to the right problem. We fail more often because we solve the wrong problem than because we get the wrong solution to the right problem.