Agnosticism (; after Gnosticism)'s the philosophical view that the truth value of certain claims — particularly metaphysical claims regarding theology, afterlife or the existence of deities, spiritual-beings, or even ultimate reality —'s unknown or, depending on the form of agnosticism, inherently impossible to prove or disprove. It's often put forth as a middle ground between theism and atheism, though it isn't a religious declaration in itself, and the terms aren't mutually exclus… (More on Agnostic)