Intuition is a very important problem among philosophers, mathematicians and logicians. Since intuition is a source of the nondefinitional concepts, axioms or unproved propositions and principles of logic, a scientific system can be well established on the basis of intuition. Intuition means direct knowledge, immediate apprehension. There is three main considerations on intuition. At first intuition is a sense perception in the point of view of Kant?s attitude; second intuition is a power of intellect, for this reason it is intellectual comprehension; This is Descartes? opinion. At the end, neither intuition is sensible nor intellectual, but it is a another power of spirit of man. Intuition has a metaphysical aspects. According to Bergson intuition must be metaphysical. Intuition always has been contrasted with reasoning. For this reason it is accepted as noninferential knowledge or noninferential comprehension