No for a couple of reasons. First, the connotation to "get-rich-quick" is that it's a foolish endeavor that usually results in loss. So I was expecting to see some amusing failures. Secondly, being born at the right time isn't "quick", unless you are perhaps speaking of the conception effort involved.
It's an excerpt from a book, as it says at the bottom and I imagine there's also some expectation the reader is generally aware Mark Twain was involved in many unsuccessful business ventures throughout his life. The excerpt provides a bit of context.