Periyar E.v. Ramasamy said this quote
“ Decide for yourselves as to what you should thing of those who say there is God, that he is the preserver of justice and that he is the protector of all, even after seeing the practice of untouchablity in the form of man being banned from human sight and contact, from walking into the streets, from entering the temples and drawing water from a tank, is rampant in the land, and yet that land is not spared from being razed by an earthquake, burnt by the fiery lava of a volcano, engulfed in a deluge from the ocean, submerged in the chasm of the earth, or fragemented by thunder-storm. ”