The mere formulation of a problem is far more essential than its solution, which may be merely a matter of mathematical or experimental skills. To raise new questions, new possibilities, to regard old problems from a new angle requires creative imagination and marks real advances in science.

Albert Einstein

Men are more moral than they think and far more immoral than they can imagine.

Sigmund Freud

This is one of those cases in which the imagination is baffled by the facts.

Adam Smith

Fools act on imagination without knowledge, pedants act on knowledge without imagination.

Alfred North Whitehead

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.

Albert Einstein

Imagination is everything. It is the preview of life’s coming attractions.

Albert Einstein

This world is but a canvas to our imagination.

Henry David Thoreau

Imagination is more important than knowledge.

Albert Einstein

Happiness is not an ideal of reason, but of imagination.

Immanuel Kant

The tree which moves some to tears of joy is in the eyes of others only a green thing that stands in the way. Some see nature all ridicule and deformity… and some scarce see nature at all. But to the eyes of the man of imagination, nature is imagination itself.

William Blake

There is a boundary to men's passions when they act from feelings but none when they are under the influence of imagination.

Edmund Burke

He who has imagination without learning has wings but no feet.

Joseph Joubert

Faith is spiritualized imagination.

Henry Ward Beecher

The imagination imitates. It is the critical spirit that creates.

Oscar Wilde

Put off your imagination, as you put off your overcoat, when you enter the laboratory. Put it on again, as you put on your overcoat, when you leave.

Claude Bernard

There are powers inside of you which, if you could discover and use, would make of you everything you ever dreamed or imagined you could become.

Orison Swett Marden