The school has a school name engraved with a stone tablet, and the school motto should be engraved below. Should we punctuate the school motto? For example, "school motto: be knowledgeable, cultivate

The school has a school name engraved with a stone tablet, and the school motto should be engraved below. Should we punctuate the school motto? For example, "school motto: be knowledgeable, cultivate one's morality." I found two pictures about Tsinghua's school motto, both without punctuation.

Generally speaking, the school motto and school name will not both appear on the tablet computer, but at most the school motto and school emblem. ..

If we really want to appear together, the second plan is definitely correct, and the third plan is acceptable. Generally, punctuation marks will not appear on inscriptions.