"The greguerías have something of the riddle, avoid the appearance of the ful and should never be jokes or jokes, as much as it may seem. They don't have to look like anything that has already been said. They are not reflections nor do they have anything to do with them, since we must be wary of the reflections, which are like those snowballs that make the bad brats by hiding a stone in the snow. The greguería is not even aphoristic. The aphorism is emphatic and sententious. I don't practice it. (p. 11)"