Abstract
We find the Platonic replenishment theory for the first time in the Gorgias, but it definitely can be find at its clearest in the Republic and the Philebus,where it plays a key role in the Platonic psychology of pleasure. According to thereplenishment theory, pleasure is defined as a movement or process or fulfillmentthat satisfies a previous lack, amounting to the recovery of our natural humanbalance state. Also, replenishment theory underpins ethical issues on the necessity ofpleasure in a good life. The aim of this work is to show how the replenishment theoryshapes Platonic general theory of pleasure, as it is the link between ontologicalquestions about pleasure‟s true nature and ethical questions about its importance inhuman life.