The death of one is a tragedy, but death of a million is just a statistic.
Source, in full
Being from Manson's Fight Song of Holy Wood, this is actually a quote misattributed to George Orwell, in his book,Animal Farm. It is a paraphrase, from Josef Stalin, in his response to the mass purges during the 1930s, that he ordered. He said, “A single death is a tragedy; a million deaths is a statistic.”