Imagination is more important than knowledge.

The true sign of intelligence is not knowledge but imagination.

The limit of man's knowledge in any subject possesses a high interest which is perhaps increased by its close neighbourhood to the realms of imagination.

The gift of fantasy has meant more to me than my talent for absorbing positive knowledge.

To raise new questions, new possibilities, to regard old problems from a new angle, requires creative imagination and marks real advance in science.

Logic will get you from A to B. Imagination will take you everywhere.