david broussard ayurvedic medicine Ayurveda, "science of life and longevity", is the oldest healing system in the world. iain thomson martin heidegger: a philosophical profile One of the most original and important philosophers of the 20th century dr. john sexual physics Q &A: If we were to engage in consensual sex at faster than the speed of light, would I go back in time, so that my boyfriend would end up having sex with a 5 year old girl? And what are the potential legal implications of this? david hume a treatise of human nature section VI: of personal identity There are some philosophers, who imagine we are every moment intimately conscious of what we call our SELF; that we feel its existence and its continuance in existence; and are certain, beyond the evidence of a demonstration, both of its perfect identity and simplicity.