The principal mark of genius is not perfection but originality, the opening of new frontiers.

Creative activity is a type of learning process where the teacher and pupil are located in the same individual.

Every creative act involves... a new innocence of perception, liberated from the cataract of accepted belief.

The prerequisite of originality is the art of forgetting, at the proper moment, what we know.

Much depends on asking the right question at the right time.

Creativity in science could be described as the act of putting two and two together to make five

Creativity is the defeat of habit by originality.