There is nothing, there can be nothing, dearer to a thinking being than life; yet the voluptuous men, those who try to enjoy it in the best manner, are the men who practise with the greatest perfection the difficult art of shortening life, of driving it fast. They do not mean to make it shorter, for they would like to perpetuate it in the midst of pleasure, but they wish enjoyment to render its course insensible; and they are right.