Hermann Weyl, who has earned a good name in the world of scientists also, supports idealism. He has expressed bis views on the nature of reality in his famous work. Space-Time-Matter. He considers the 'consciousness' as the objective reality. All the qualities of matter, according to him, are subjective. Describing the nature of consciousness, he writes, "Pure consciousness is the seat of that which is philosophically a priori. Antecedent to all perception there is in us the experience of effort and opposition, of being active. Perception serves above all to place clearly before his consciousness the definite point of attack, of the action he wills and the source of the opposition to it. As the doer and endurer of actions, I become a single individual with a psychical reality attached to a body which has its place in space among the material things of the external world, and by which I am in communication with other similar individuals. Consciousness, without surrendering its immanence, becomes a piece of reality, becomes this particular person namely, myself, who was born and will die."[1]
Thus, we see that Weyl considers 'conciousness' or the self as the Reality, which is the doer and endurer of all actions, Further, he asserts that the qualities of matter, such as colour, are not the objective qualities, but are imposed upon the object by this consciousness. He states, "It is easily seen that such a quality as "green" has an existence only as the correlate of the sensation 'green' associated with an object given by perception, but that it is meaningless to attach it as a thing in itself to material things existing in themselves."[2]
In this way, we can see that Weyl's philosophical view clearly denies the objective existence of the qualities of matter.