For the meaning of Eminent - expansion. Harvest - determination click HERE
Line 1. 'Net - true - rich' can be translated in several ways. Another possibility: to collect captives and riches, or: collect true riches.
Line 3. 'All': the crowd, eye+3 people. Sincere can also mean 'consent'.
Line 4. The flying squirrel or wu-ji-shu, five-skills rodent. It can fly, but not so that it can pass over a roof; it can climb, but not so that it can reach the top of a tree; it can swim, but not so that it can cross a small stream; it can burrow, but not so that it can cover itself; and it can run, but not so that it can outpace a man.