Originally Posted By: val_t
I know there is a word to describe the act of doing exactly what one wants to do, even though one knows one oughtn't.

For example: I know I shouldn't eat this entire tray of brownies but I will anyway, because I want to.

This concept can be expanded to define a philosophy that asserts that people will always do exactly what they want, because if they didn't want to do it, they wouldn't.


All my medical brain can offer is compulsion. However, I'm not sure this is the word you're looking for, and I'm pretty sure that it would be inappropriate to use it for the philosophy you describe.