I had a point to add to Chaims discussion of Eikev. While I see that it is possible to read the sentence :
17. and you will say to yourself, "My strength and the might of my hand that has accumulated this wealth for me."
As Chaim suggests, that it is through our actions that we acquire wealth and status, it is equally important to read the very next sentence to understand the context of what this section of the parsha is saying:
18. But you must remember the Lord your God, for it is He that gives you strength to make wealth, in order to establish His covenant which He swore to your forefathers, as it is this day.
The full lesson is that while we must do our action in this world we should not become haughty or ignore Hashems providence even when we are doing well.. If we should forget him the next line clearly warns of danger:
19. And it will be, if you forget the Lord your God and follow other gods, and worship them, and prostrate yourself before them, I bear witness against you this day, that you will surely perish.