Introduction
How odd will it be for someone to ask us to disbelieve our common sense experience to the extent that we are almost convinced that what we take for granted as existing outside us or independent of our perception is not really so. That is, all that we think and know for sure exists outside of our perception are series of minds at work and that anything outside of such belief system is at best hallucinatory and at worst nonsensical. This kind of extraordinary thinking, though strange, could not be dismissed as arrant nonsense. Yet, it has a serious implication for our claim to knowledge. It questions the validity of our everyday assumptions; assumptions on which we build our actions, claims and further dispositions about life.
