Question: What is the difference between egoism and altruism?
Answer: Egoism differs from altruism only in the intention: on whether I want to do something for myself or for others.
I can kiss you and it will be for myself, and I can slap you a couple of times, and it will be for you. In other words, the action itself is meaningless. It is only the intention that determines its essence.
From the Kabbalah Lesson in Russian 2/26/17
The Indefatigable Growth Of Egoism
A Desire For Pleasure Is Not Egoism
Boundless Limit of Egoism