Kotowaza of the day: Victor takes up the pen

Japanese:

勝てば官軍負ければ賊軍

Romanized:

Kateba kangun makereba zokugun

Meaning of Japanese:

The winning (successful) army is called the "government forces," and the losers the "rebel (opposition) forces"

English equivalents:

Might makes right
God is always on the side of the heaviest battalions
Losers are always in the wrong
History is written by the victors