《韩非子·饬令》
出兵一定有所攻取。攻取以后一定能够长期占有；按兵不动的话，国家就一定会富强。
兵出必取，取必能有之；案兵不攻必当。
An expedition must have something to gain. What is gained after the attack must be able to be held for a long time; if troops are not mobilized, the country will definitely become rich and powerful.