A just cause wins support, while an unjust one loses it.

This is from The Book of Mencius. The Chinese people have upheld justice since ancient times, and believe that justice determines the fortunes of any war or undertaking. One who upholds justice will not stand alone, but will receive support, foster unity, and achieve ultimate victory, while injustice is doomed to isolation and failure.

At a reception commemorating the 70th anniversary of the victory in the Chinese People's War of Resistance Against Japanese Aggression and World War II, held in September 2015, Xi Jinping quoted this saying that "A just cause enjoys abundant support, while an unjust one finds little support." Attempting to negate the history of aggression is distorting history as well as insulting human intelligence, and anyone who attempts to do this will end up losing the support of the entire world.

得道者多助，失道者寡助

“得道者多助，失道者寡助”，出自《孟子》，意為站在正義、仁義方面，會得到多數人的支持幫助；違背道義、仁義，必然陷于孤立。中國人自古推崇道義，認為道義是決定戰爭或事業成敗的根本力量。只有奉行道義，才能贏得內部的團結一致、贏得民心，取得戰爭或事業的最后勝利；否則就會不得人心，陷入孤立無援的境地，并最終歸于失敗。

2015年9月，習近平在紀念中國人民抗日戰爭暨世界反法西斯戰爭勝利70周年招待會上引用“得道者多助，失道者寡助”，指出否認侵略歷史，是對歷史的嘲弄，是對人類良知的侮辱，必然失信于世界人民。