W. C. Fields

In simple terms, this quote by W. C. Fields in the context of smile is expressing a point of view or lesson. It highlights what the speaker considers important and why.

It can be read as a reminder to pay attention to your choices, perspective, and priorities — especially when you’re under pressure or uncertain.

A useful way to apply it is to ask: “What situation in my life does this relate to right now, and what would change if I took it seriously?”