And the author mr Mike says : "So Spinoza defined good as what we perceive as pleasure and bad as that which brings pain. Like Epicurus he recognised that people do experience pleasure in the pleasure of others and ultimately in the well-being of all nature".
Epicurus recognized that people do experience pleasure in the pleasure of others ....yes, but WHO ARE THOSE OTHERS ?!
That means that when Plato wrote all of his nonsense and he was pleased, Epicurus had had to be pleased too saying : Wow, Plato is pleased, so I feel pleased too. Plato said it all... and since ataraxia and aponia is my goal, I rest my case.