One might ask how, if it is true that the flowers and plants call for the element that makes their color, it happens that there is sometimes little difference in the colors of flowers and leaves, and that all roses have more or less the same scent. The answer is that the rose's past is behind it; and since the seed of the rose had conceived those properties which the rose shows, it has maintained as its heritage that fragrance and color. But at the same time it takes from the air and the sun that substance which makes it the perfect rose. In other words, there is perhaps in some garden another plant, a flower which is without fragrance. It has the same sun, it has the same air, it is in the same soil; but it is the rose which calls for the properties that make it a rose. Though that flower is in the same place it does not call for them, it calls only for those properties which keep it as it is.