Synesthesia The word “synesthesia” or “synaesthesia,” has its origin in the Greek roots, syn, meaning union, and aesthesis, meaning sensation: a union of the senses. Many researchers use the term “synesthesia” to refer to a perceptual anomaly in which a sensory stimulus associated with one perceptual modality automatically triggers another insuppressible sensory experience which is usually, but not always, associated with a different perceptual modality

Bertrand Russel: Metaphysics Metaphysics is not a school or tradition but rather a sub-discipline within philosophy, as are ethics, logic and epistemology. Like many philosophical terms, “metaphysics” can be understood in a variety of ways, so any discussion of Bertrand Russell’s metaphysics must select from among the various possible ways of understanding the notion, par exemple, as the study of being qua being, the study

Wittgenstein: Epistemology Although Ludwig Wittgenstein is generally more known for his works on logic and on the nature of language, but throughout his philosophical journey he reflected extensively also on epistemic notions such as knowledge, croyance, doute, and certainty. This interest is more evident in his final notebook, published posthumously as On Certainty (1969, henceforth OC), where he offers a sustained and, du moins apparemment,

Michel de Montaigne (1533-1592) Michel de Montaigne, the sixteenth century French essayist, is one of the most renowned literary and philosophical figures of the late Renaissance. The one book he wrote, Les Essais de Michel de Montaigne, is not a traditional work of philosophy. Having begun work on it around 1572, he published the first edition in 1580. He then went on to publish four