It's possible you're thinking of:
* St. Nicholas: A popular figure, often associated with Christmas and gift-giving. He's often called "Sinterklaas" in some countries.
* Saint: A general term for a holy person in Christianity, often recognized for their life of piety and service.
Could you please clarify your question? For example:
* Are you looking for the motto of a specific Saint?
* Are you thinking of a specific country or region where "Sint" is used in a different context?
Once you provide more context, I can assist you better.