This sentence comes from a five-character quatrain written by Zhu.
Full text:
The axe sawed off the rotten edge, and one eye looked crooked.
Skillful hands, founder ink line collar.
This poem is used to praise the carpenter. Carpenters use an axe, a saw, a file, a drill, a plane, a ruler, a bucket and a clever heart to cut trees, saw wood, mark lines, axes, razors, file eyes and mortises to build houses, make furniture and make tools for mankind.
Another version:
Skills color luban, look straight. ?
The axe sawed off the branches, and the founder Mo Dou shouldered the heavy burden.