Sometimes people need to get in touch with their inner self. In which case maybe it would help to have some idea of just what a self is. After all, most people seem to have one. But identifying exactly what constitutes a sense of identity isn’t as simple as it sounds.
Centuries ago, the French philosopher Rene Descartes thought he’d found the answer. “I think,” he said, “therefore I am.” In other words, he identified self-existence as thought and further declared that thought was something separate from the body.
Modern science, however, rejects Descartes’ self-reflection. Philosopher, Patricia Churchland claims that conscious thoughts such as “I am,” reflect physical activity in the brain. Furthermore, some aspect of self are not always connected to conscious thought.
Besides, the 18th-century philosopher David Hume refuted Descartes long ago, nothing that introspection does not produce any notion of self as distinct from our body. All your brain has to work with is “a continuously changing flux of visual perceptions, sounds, smells, emotions, memories, thoughts, feelings of fatigue, and so forth.” – Patricia Churchland, Journal Science.