From
《论语·颜渊》:
子贡问政。子曰:'足食,
足兵,
民信之矣。'……
曰:'
自古皆有死,
民无信不立。' - When Zigong asked about government, Confucius listed three essentials: sufficient food, sufficient arms, and the people's trust. Forced to drop one, he would drop arms, then food - 'since ancient times all must die, but without the people's trust the state cannot stand.'