shùn wú bú háng, guǒ wú bú chè 顺无不行，果无不彻
When What You Say Is Justified, There Is Nothing You Cannot Accomplish. When You Act Decisively, You Will Succeed.
What is justified and fair is bound to work; acting with determination is bound to succeed. This statement emphasizes that being on justified ground and acting decisively will enable one to ultimately achieve the goal, which is similar to the current view that people should both be self-motivated and respect objective laws.
When what a man says is justified, there is nothing he cannot accomplish. When he acts decisively, he is sure to succeed. To offend someone who is on justified ground will do you no good. You will not succeed if you attack someone who acts decisively. (Discourses on Governance of the States)