He shall taste of my bottle: if he havenever drunk wine afore will go near to remove hisfit.
Stephano stating that he can tame Caliban by giving him alcohol reflects the futility of European attempts to "civilize" their colonial subjects. While the Europeans feel that they are doing a service to these people by colonizing them (the idea of the "White Man's Burden"), Shakespeare is suggesting that they are just using their superiority to exclude and degrade them.