english: But when he gets back from the voyage, his interests start to expand even further: psychology, botany; for the rest of his life, he's moving backwards and forwards between these different fields.
non_english: Međutim, kad se vratio s putovanja, njegova interesovanja počinju da se šire još više, na psihologiju, botaniku; do kraja života, kretaće se napred i nazad između ovih različitih oblasti,