Instead of a perpetual and perfect measure of the divine will, the fragments of the Koran were produced at the discretion of Mahomet; each revelation is suited to the emergencies of his policy or passion; and all contradiction is removed by the saving maxim that any text of Scripture is abrogated or modified by any subsequent passage.
If you can't save your own life, is it even worth saving?
It's disrespectful to tell the French in the morning that you're going to reduce the debt, in the evening that you're not going to make any savings, and the next morning, after thinking about it, that you're going to spend more.