The moon moves slowly, but it crosses the town.

What it means
The moon seems barely to move, yet by morning it has crossed the whole sky above the town. Steady, unhurried progress still gets there; speed isn't what decides whether something gets done.
Akan · West Africa
Source and context
From: Akan, West Africa
Source: Akan (Ashanti, Ghana) proverb; listed in "Ashanti Proverbs from Ghana" (Discourse proverb collection, University of California, Los Angeles: dcl.sscnet.ucla.edu), which gives the English only, with no explanation. Earlier recorded here as Amharic (Ethiopia); no source was found giving it as Amharic.

The meaning given here is our own reading. Other interpretations exist.