Abstract
ONE might characterize the late twentieth century as a period when men have become oblivious of nature. Not only- is the concept of human nature under attack, but the broader awareness of nature itself, of things that exist by nature as opposed to those that exist through other causes, is no longer part of our mental equipment. The ecological crisis and the near exhaustion of many natural resources bear eloquent witness to this state of affairs. The scientific and industrial revolutions have made us proficient at converting the objects that surround us into artifacts, at "manipulating nature," if you will, but they have dulled our appreciation for the intelligibility of nature in its own right. As an example I would cite the latest theme to attract attention in the philosophy of science, that of scientific revolutions and theory change, which has sought to substitute the notion of progress for that of truth. According to Thomas Kuhn and Larry Laudan, among others, science can no longer be said to be concerned with investigating the truth about the universe in which we live-another way of speaking about the truth of nature. Instead, the goal of science is seen by them to be progress, progress defined in terms of problem-solving effectiveness rather than as an approach to truth. In their view rationality has ceased to have an extrinsic norm; men are rational to the extent that they can solve puzzles or problems, not to the extent that they can understand the world of nature that surrounds them.