Knowledge and construct All our knowledge of the world, in common-sense as well as in scientific thinking, involves constructs, i.e., a set of abstractions generalizations, formalizations, idealizations specific to the respective level of thought organization. Strictly speaking, there are no such things as facts, pure and simple. All facts are from the outset facts selected from a universal context by the activities ofour mind. They are, therefore, always interpreted facts, either facts carry along their interpretational inner and outer horizon This does not mean that, in daily life or in science we are unable to grasp the reality of the world. It just means that we grasp merely certain aspects of it, namely those which are relevant to us either for carrying on our business of living or from the point of view of a body of accepted rules of procedure of thinking called the method of scienceKnowledge and construct • All our knowledge of the world, in common-sense as well as in scientific thinking, involves constructs, i.e., a set of abstractions, generalizations, formalizations, idealizations specific to the respective level of thought organization. Strictly speaking, there are no such things as facts, pure and simple. All facts are from the outset facts selected from a universal context by the activities of our mind. They are, therefore, always interpreted facts, either facts looked at as detached from their context by an artificial abstraction or facts considered in their particular setting. In either case, they carry along their interpretational inner and outer horizon. This does not mean that, in daily life or in science, we are unable to grasp the reality of the world. It just means that we grasp merely certain aspects of it, namely those which are relevant to us either for carrying on our business of living or from the point of view of a body of accepted rules of procedure of thinking called the method of science