What's important at the grocery store is just as important in engines or medical systems. If the customer isn't satisfied if the stuff is getting stale if the shelf isn't right or if the offerings aren't right it's the same thing. You manage it like a small organization. You don't get hung up on zeros.
Other than marriage she doesn't control me and I don't control her.
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There have been some medical schools in which somewhere along the assembly line a faculty member has informed the students not so much by what he said but by what he did that there is an intimate relation between curing and caring.