... selfish.
Language is part of culture, culture is a social science and closest to philosophy relative to the other options. So here I am in this forum.
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The bible is a good example of this.
Selfishness is a worldly trait, yet the only reasons to not be selfish given by the bible is to avoid hell, attain heavenly rewards, for the love of God and so you can get drunk in God's presence.
Now this isn't just a religious phenomenon. Mechanically it is impossible for someone to do something they don't want to do, any person who would be considered "Unselfish" such as a super caring nurse that devotes her entire life helping others and just enjoys helping others, is still doing it for herself since she enjoys helping others.
A nurse who helps others for the money is still getting something she wants.
A nurse that is doing it to just alleviate guilt is still getting what she wants.
A nurse that is doing it for recognition also is getting what she wants.
However people apply the labels "selfish" and "unselfish" differently to these women based on what they are getting out of it.
So I need a word to describe the underlying drive of a person, the base desire for benefit that everything else is based upon.
Do you understand what I mean?