holding that only material phenomena can be known and knowledge of spiritual matters or ultimate causes is impossible
2
someone who emphasizes observable facts and excludes metaphysical speculation about origins or ultimate causes a
3
someone who emphasizes observable facts and excludes metaphysical speculation about origins or ultimate causes
4
s rejecting any belief in gods s holding that only material phenomena can be known and knowledge of spiritual matters or ultimate causes is impossible s denying or questioning the tenets of especially a religion