“When you are seventeen you aren’t really serious,” wrote the poet at 16, four years before he would give up on literature to pursue the less frivolous business of exploration and gun-running. It would appear that the times have changed considerably since Arthur Rimbaud, with his signature mixture of precociousness and pretentiousness, described how at 17 “your mad heart goes Crusoeing through all the romances” and “You’re in love. Taken until the month of August./You’re in love—Your sonnets make Her laugh/All your friends disappear, you are not quite the thing.”