The insanity of war
"We are insane as a country, and not just as individuals. We reduce the incidence of individual killings, but what about wars and the splendid crime of genocide? There is no limit to our greed and cruelty. As long as these things are done in secret and confined to individuals, they are less destructive and less shocking, but savagery is also being committed on the authority of the Senate and popular mandate: acts that are forbidden to private citizens are required as a matter of public policy. Offenses punishable by death when committed in secret we now praise, just because those who commit them are generals in full dress. Human beings are the gentlest species, but we are not ashamed to enjoy homicide, to wage war and pass it on to our children, although even wild animals devoid of speech maintain mutual peace."
- Seneca, Letters 95.30