“Hatred is corrosive of a person's wisdom and conscience; the mentality of enmity can poison a nation's spirit, instigate brutal life and death struggles, destroy a society's tolerance and humanity, and block a nation's progress to freedom and democracy.”
Liu Xiaobo
“A great civilization is not conquered from without, until it has destroyed itself from within. The essential causes of Rome's decline lay in her people, her morals, her class struggle, her failing trade, her bureaucratic despotism, her stifling taxes, her consuming wars.”
Will Durant