Nothing is harder to topple than a fact that supports a deeply held prejudice denied by its holder.

No problem stays solved in a dynamic environment.

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.

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

Art inspires, produces an unwillingness to settle for what we have and a desire for something better. It is the product and producer of creative activity, change; it is essential for continuous development.

Traditional education focuses on teaching, not learning. It incorrectly assumes that for every ounce of teaching there is an ounce of learning by those who are taught. However, most of what we learn before, during, and after attending schools is learned without its being taught to us. A child learns such fundamental things as how to walk, talk, eat, dress, and so on without being taught these things. Adults learn most of what they use at work or at leisure while at work or leisure. Most of what is taught in classroom settings is forgotten, and much or what is remembered is irrelevant.

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.