《左传·僖公·僖公二十八年》
战而得胜，一定得到诸侯；如果不胜，我国外有大河，内有高山，一定没有什么害处。 
战而捷，必得诸侯。若其不捷，表里山河，必无害也。 
If we fight and we are victorious, we will surely get the feudal lords; if we are not victorious, our country has a big river outside and high mountains inside, there will definitely be no harm.