Who said “Christianity has operated with an unmitigated arrogance and cruelty -- necessarily,…”?

“Scratch the Christian and you find the pagan -- spoiled.”

“What if men take to following where He leads, weary of mumbling Athanasian creeds?”

“The trouble with born-again Christians is that they are an even bigger pain the second time around.”

“The Christian ideal has not been tried and found wanting. It has been found difficult; and left untried.”

“He who begins by loving Christianity better than truth, will proceed by loving his own sect or church better than Christianity, and end in loving himself better than all.”

“The moment we break faith with one another, the sea engulfs us and the light goes out.”

“Not everything that is faced can be changed, but nothing can be changed until it is faced.”

“A child cannot be taught by anyone who despises him, and a child cannot afford to be fooled.”

“The primary distinction of the artist is that he must actively cultivate that state which most men, necessarily, must avoid: the state of being alone.”

“People who treat other people as less than human must not be surprised when the bread they have cast on the waters comes floating back to them, poisoned.”

“Words like ''freedom,'' ''justice,'' ''democracy'' are not common concepts; on the contrary, they are rare. People are not born knowing what these are. It takes enormous and, above all, individual effort to arrive at the respect for other people that these words imply.”