"As a matter of fact agnosticism is a theory of knowledge: it is defined as that theory of knowledge which ends in doubt, or disbelief of some or all of the powers of knowing possessed by the human mind. In a word, it is the opposite to gnosticism. Gnosticism attributed to the human mind a greater power of knowing than it actually possessed. Agnosticism denies to the human mind a power of attaining knowledge which it does possess. It is important to remember that agnosticism, as such, is a theory about knowledge and not about religion. This fact is frequently overlooked and the probe of empiric test confined illegitimately to the sphere of religious knowledge."