Paulo Coelho said this quote

I have always believed that in the lives of individuals, just as in society at large, the profoundest changes take place within a very reduced time frame.When we least expected it, life sets us a challenge to test our courage and willingness to change; at such a moment, there is no point in pretending that nothing has happened or in saying that we are not ready yet.The challenge will not wait.Life does not look back.A week is more than enough time for us to decide whether or not to accept our destiny.