Heinlein again. This should always and forever be on everyone's short list of quotes:
Instapundit » Blog Archive » REMINDER: A quote from Robert Heinlein: Throughout history, poverty is the normal condition …: "REMINDER: A quote from Robert Heinlein:Throughout history, poverty is the normal condition of man. Advances which permit this norm to be exceeded — here and there, now and then — are the work of an extremely small minority, frequently despised, often condemned, and almost always opposed by all right-thinking people. Whenever this tiny minority is kept from creating, or (as sometimes happens) is driven out of a society, the people then slip back into abject poverty.
This is known as “bad luck.”"