Complex sentence: He does, however, pay Jim fourpence a month to keep watch for "a seafaring man with one leg", and though he seems sometimes on the verge of deciding this a waste of money, he invariably repents.
Split into simpler sentences: He does, however, pay Jim fourpence a month to keep watch for "a seafaring man with one leg". Though he seems sometimes on the verge of deciding this a waste of money, he invariably repents.