philosophy

  • Are beliefs or delusions characteristic of obsessive-compulsive disorder?

    In the fourth edition of the Diagnostic and Statistical Manual of Mental Disorders (DSM-IV-TR), obsessive-compulsive disorder (OCD) can be diagnosed with a specifier of ‘with poor insight’ whenever the individual does not recognize that the obsessions or compulsions are excessive or unreasonable” (300.3). Yet some insight must have occurred, since by definition, adults with Obsessive-Compulsive Disorder have…

  • Marcus Aurelius: The Character of Antoninus

    In Book 6 of his Meditations, Marcus Aurelius makes some remarks about the character of Antoninus Pius, his predecessor as Emperor of Rome, and his adoptive father. Marcus warns himself against being seen as like Julius Caesar, and says to avoid this he must live a good and humble life and conduct his duties in such…

  • Sextus Empiricus: No Definition of Man

    In Book I of his traditionally-titled Against the Logicians (Book VII of Adversus Mathematicos), Sextus Empiricus presents a critique of how past philosophers have attempted to define the human being. He notes that these philosophers would pass off a definition as an “explanation of man” (132), a strategy that, for Sextus, would surely fail. First is the account that…

  • Leibniz: Space as a Relation and Absurd Otherwise

    In his third letter of correspondence with Samuel Clarke, Leibniz outlines his position on the nature of space. Contrary to Newton, and Clarke who defends him, Leibniz holds that space is “something purely relative” (14), that space is not a substance or a thing that exists, but rather the relationship between the objects it seems…

  • Lucretius on Matter and the Void

    Lucretius on Matter and the Void

    In Book I of On the Nature of Things[1], Lucretius provides arguments for the existence of two main things that exist: matter and the void. Further, he argues that there are no other types of things besides these. First, Lucretius asserts that matter is known to exist by means of sensory perception. We see matter, we…

  • Leibniz: The Best of All Possible Worlds

    According to Leibniz, the actual world is the best of all possible worlds. He outlines a simple argument for this conclusion in The Monadology, §§53-55. The argument proceeds as follows: God has the idea of infinitely many universes. Only one of these universes can actually exist. God’s choices are subject to the principle of sufficient reason, that…

  • Infants are ‘reprehensible’, says Augustine

    In Book I, Chapter VII of his Confessions, Augustine makes some comments on the innocence of infants. I’m not a huge fan of religious philosophy, but I found this passage kind of amusing. Augustine says that the actions of infants are “reprehensible” (8), the way they cry loudly for nourishment, constantly demanding the attention of their…