Philosophy Logic

In a letter of 1932, Karl Popper described Die beiden Grundprobleme der Erkenntnistheorie–The Two Fundamental Problems of the Theory of Knowledge–as ‘…a child of crises, above all of …the crisis of physics.' The two fundamental problems of knowledge that lie at the center of the book are the problem of induction, that although we are able to observe only a limited number of particular events, science nevertheless advances unrestricted universal statements; and the problem of demarcation, which asks for a separating line between empirical science and non-science.

Quantum physics is notable for its brazen defiance of common sense. (Think of Schrödinger's Cat, famously both dead and alive.) An especially rigorous form of quantum contradiction occurs in experiments with entangled particles. Our common assumption is that objects have properties whether or not anyone is observing them, and the measurement of one can't affect the other. Quantum entanglement rejects this assumption, offering impeccable reasoning and irrefutable evidence of the opposite. Is quantum entanglement mystical, or just mystifying?

This work sets forth a theory which is speculative in nature, there being no verifying experiments. It is based on the idea of the reversibility of everything in time; that is, that every type of process has its time image, a corresponding process which is its exact reverse with respect to time.

The Tractatus Logico-Philosophicus is a classic work of philosophy by the Austrian philosopher Ludwig Wittgenstein. Written during World War I, the Tractatus consists of seven propositions. In the propositions, Wittgenstein discusses language, thought, reality, and the natural science.

One of the two major philosophical traditions of the twentieth century was linguistic analysis, derived largely from Wittgenstein. The other, diametrically opposed, came from Heidegger, and its fundamental question was, "What is the meaning of existence?" For Heidegger, this question could not simply be "analyzed away". It was beyond the reach of logic or reason. It was the primary "given" of every individual life. To confront it, Heidegger needed to develop an entire new form of philosophy.

In very recent times humanity has learnt a vast amount about the universe, the past and itself. But through our remarkable successes in acquiring knowledge we have learned how much we have yet to learn: the science we have, for example, addresses just five per cent of the universe, pre-history is still being revealed, with thousands of historical sites yet to be explored, and the new neurosciences of mind and brain are just beginning.

Charles Sanders Peirce is perhaps the greatest philosophical mind to emerge from the United States. He was hugely influential on William James, Alfred North Whitehead, and many other eminent thinkers. This small volume includes two famous essays by Peirce, "The Fixation of Belief" and "Questions Concerning Certain Faculties Claimed for Man." Also included is a short, intellectual biography of Peirce which focuses on his many contributions to science and philosophy. Chosen and very slightly edited by Professor David Christopher Lane, PhD.

This book offers what may with reservations be described as a theory of the mind. But it does not give new information about minds. We possess already a wealth of information about minds, information which is neither derived from, nor upset by, the arguments of philosophers. The philosophical arguments which constitute this book are intended not to increase what we know about minds, but to rectify the logical geography of the knowledge which we already possess.

Published four years after Rousseau's death, Confessions is a remarkably frank and honest self-portrait, described by Rousseau as "the history of my soul". From his idyllic youth in the Swiss mountains, to his career as a composer in Paris and his abandonment of his children, Rousseau lays bare his entire life with preternatural honesty.

George R. R. Martin's New York Times best-selling epic fantasy book series, A Song of Ice and Fire, and the HBO television show adapted from it, have earned critical acclaim and inspired fanatic devotion. This book delves into the many philosophical questions that arise in this complex, character-driven series, including: Is it right for a "good" king to usurp the throne of a "bad" one and murder his family? How far should you go to protect your family and its secrets?

With Friedrich Nietzsche, philosophy was dangerous not only for philosophers but for everyone. His ideas presaged a collective madness that had horrific consequences in Europe in the early 1900s. Though his philosophy is more one of aphorisms than a system, it is brilliant, persuasive, and incisive. His major concept is the will to power, which he saw as the basic impulse for all our acts. Christianity he saw as a subtle perversion of this concept, thus Nietzsche's famous pronouncement, "God is dead."

Le constat est implacable : l’être humain est un sujet parlant... et qui parle beaucoup ! Nombreux sont ceux et celles qui se sentent obligés de discourir, de causer, de deviser, mus par une impulsion, celle de rompre un silence parfois suspect, souvent gênant. La pratique philosophique vise à réconcilier les individus avec leur propre discours, discours qu’ils déprécient fréquemment, voire dénigrent. Comprendre à quoi sert notre parole pour mieux en user et trouver une langue juste pour dire qui nous sommes : voici les enjeux de cet ouvrage qui parlera, très certainement, à beaucoup !

On June 22, 1936, the philosopher Moritz Schlick was on his way to deliver a lecture at the University of Vienna when Johann Nelböck, a deranged former student of Schlick's, shot him dead on the university steps. Some Austrian newspapers defended the madman, while Nelböck himself argued in court that his onetime teacher had promoted a treacherous Jewish philosophy. David Edmonds traces the rise and fall of the Vienna Circle - an influential group of brilliant thinkers led by Schlick.

Le "Discours de la méthode" est un texte composite, assez peu méthodique en vérité, qui touche à la morale, à la logique, aux sciences. La méthode proprement dite se résume en peu de règles : "ne recevoir jamais aucune chose pour vraie, que je ne la connusse évidemment être telle" ; "diviser chacune des difficultés que j'examinerais" ; "conduire par ordre mes pensées" et m'assurer, par des "dénombrements si entiers, et des revues si générales", de n'avoir rien omis dans ces "chaînes de raisons", sur le modèle des géomètres.

If you want to impress people with your critical-thinking skills, then check out this comprehensive audiobook with two manuscripts in one: Critical Thinking and Logical Fallacies.

Audiolibro de Vive el Tiempo. Escrito hace más de dos mil años, El Arte de la Guerra es un manual de enseñanzas para salir exitoso de cualquier batalla que se presente en la vida. Hoy en día este libro ha superado su original carácter militar y se ha convertido en una ineludible herramienta para quienes quieren ser triunfadores en la política, en los negocios, en los deportes, en la diplomacia y en todas las relaciones humanas.

David Hume reduced philosophy to ruins: he denied the existence of everything, except our actual perceptions themselves. I alone exist, he argued, and the world is nothing more than part of my consciousness. Yet we know that the world remains, and we go on as before. What Hume expressed was the status of our knowledge about the world, a world in which neither religion nor science is certain.

Le mensonge est important. Nous nous mentons à nous-même et aux autres. Mais qu'est-ce qui nous pousse à dissimuler ou arranger la vérité à notre avantage ? Nous sommes imparfaits, pas aussi bons que nous le souhaiterions ou que nous le prétendons. L'intégration sociale nous oblige également à mentir car la vérité est source de problèmes et de conflits. Pour survivre et réussir, nous faisons semblant, avec les meilleures intentions. Mais attention! Le mensonge est bien trompeur. Quelles sont derrière les apparences, les diverses causes et formes du mensonge ?

Critical thinking can be defined as "finding out how to think better by enhancing one's thinking skills". People who are critical thinkers use the thinking procedure to evaluate, consider, reflect on, and piece together what they have learned or are currently learning. Unfortunately, much of everybody's thinking tends to be prejudiced, imprecise, uncertain, uninformed, or even sexist or racist. Since this ends up being significantly limiting, critical thinking is needed to improve its quality and value.

Aristotle wrote on everything from the shape of seashells to sterility, from speculations on the nature of the soul to meteorology, poetry, art, and even the interpretation of dreams. Apart from mathematics, he transformed every field of knowledge that he touched. Above all, Aristotle is credited with the founding of logic. When he first divided human knowledge into separate categories, he enabled our understanding of the world to develop in a systematic fashion.