One Piece teaches life lessons
luffy : never gice up whatever u are doing !
zoro : try ur hardest and ur best !
nami : forget about the past and think about the present & future !
usopp : show courage even in toughest times !
sanji : be thankful for food and be nice to women !
chopper : eventhough u are abandoned , there are people that care about u !
robin : be patient , read a lot and dont think of suicide !
franky : do what u think is right !
brook : personality is better than appearance !
That what One Piece teach us :D