To invent, you need a good imagination and a pile of junk.

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.

Imagination is more important than knowledge.

I am enough of an artist to draw freely upon my imagination. Imagination is more important than knowledge. Knowledge is limited. Imagination encircles the world.

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

A person must have a good memory to keep the promises he has made. A person must have a strong imagination to be able to have pity. So closely is morality tied to the quality of the intellect.