These essays by leading scholars offers a reassessment of Descartes's philosophy. Three central and closely connected areas of his thought are explored: the nature of reason and truth, the relation between the will and the intellect, and the role of the senses in the development of knowledge.

Neil Sinhababu defends the Humean Theory of Motivation, according to which desire drives all human action and practical reasoning. Desire motivates us to pursue its object, makes thoughts of its object pleasant or unpleasant, focuses attention on its object, and is amplified by vivid representations of its object. These aspects of desire explain a vast range of psychological phenomena - why motivation often accompanies moral belief, how intentions shape our planning, how we exercise willpower, what it is to be a human self, how we express our emotions in action, why we procrastinate, and what we daydream about. Some philosophers regard such phenomena as troublesome for the Humean Theory, but the properties of desire help Humeans provide simpler and better explanations of these phenomena than their opponents can. The success of the Humean Theory in explaining a wide range of folk-psychological and experimental data, including those that its opponents cite in counterexamples, suggest that it is true. And the Humean Theory has revolutionary consequences for ethics, suggesting that moral judgments are beliefs about what feelings like guilt, admiration, and hope accurately represent in objective reality.

A thought-provoking argument that consciousness—more widespread than previously assumed—is the feeling of being alive, not a type of computation or a clever hack In The Feeling of Life Itself, Christof Koch offers a straightforward definition of consciousness as any subjective experience, from the most mundane to the most exalted—the feeling of being alive. Psychologists study which cognitive operations underpin a given conscious perception. Neuroscientists track the neural correlates of consciousness in the brain, the organ of the mind. But why the brain and not, say, the liver? How can the brain—three pounds of highly excitable matter, a piece of furniture in the universe, subject to the same laws of physics as any other piece—give rise to subjective experience? Koch argues that what is needed to answer these questions is a quantitative theory that starts with experience and proceeds to the brain. In The Feeling of Life Itself, Koch outlines such a theory, based on integrated information. Koch describes how the theory explains many facts about the neurology of consciousness and how it has been used to build a clinically useful consciousness meter. The theory predicts that many, and perhaps all, animals experience the sights and sounds of life; consciousness is much more widespread than conventionally assumed. Contrary to received wisdom, however, Koch argues that programmable computers will not have consciousness. Even a perfect software model of the brain is not conscious. Its simulation is fake consciousness. Consciousness is not a special type of computation—it is not a clever hack. Consciousness is about being.

Now available in English for the first time, Norwegian philosopher Arne Naess's meditation on the art of living is an exhortation to preserve the environment and biodiversity. As Naess approaches his ninetieth year, he offers a bright and bold perspective on the power of feelings to move us away from ecological and cultural degradation toward sound, future-focused policy and action. Naess acknowledges the powerlessness of the intellect without the heart, and, like Thoreau before him, he rejects the Cartesian notion of mind-body separation. He advocates instead for the integration of reason and emotion--a combination Naess believes will inspire us to make changes for the better. Playful and serious, this is a guidebook for finding our way on a planet wrecked by the harmful effects of consumption, population growth, commodification, technology, and globalization. It is sure to mobilize today's philosophers, environmentalists, policy makers, and the general public into seeking--with whole hearts rather than with superficial motives--more effective and timelier solutions. Naess's style is reflective and anecdotal as he shares stories and details from his rich and long life. With characteristic goodwill, wit, and wisdom, he denounces our unsustainable actions while simultaneously demonstrating the unsurpassed wonder, beauty, and possibility our world offers, and ultimately shows us that there is always reason for hope, that everyone is a potential ally in our fight for the future.

This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work is in the "public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.

First essay collection devoted to Kant's faculty of feeling, a concept relevant to issues in ethics, aesthetics, and the emotions.