What Sancho Panza advised us when he was taken out of the cave in which he fell with Rucio after leaving the Barataria government is that we never say that: " . and as the time, such the tempt and no one say: I will not drink this water, that where it is thought that there are bacons, there are no stakes; and God understands me, and enough is enough, and I say no more, even if I could. . . "Popular wisdom completed the saying with: "and this priest is not my father" and some add a somewhat rude expression, which I will not say. That is, let's not cheerfully promise anything or commit ourselves to what we cannot fulfill, that life takes many turns and the future is uncertain.