The purpose of a habit is to remove that action from self-negotiation. You no longer expend energy deciding whether to do it. You just do it. Good habits can range from telling the truth， to flossing

人活着，就应该坦坦荡荡，明明白白，无所愧疚。

Climate change poses the greatest threat to marine life, and we must act now to mitigate its effects.

我不考虑年龄。如果你继续努力工作，你可以继续前进。