Stop saying those things that make you weak and ashamed. Say only those things that make you strong. Do only those things that you could speak of wit… - Jordan Peterson

If you can't understand why someone is doing something, look at the consequences of their actions, whatever they might be, and then infer the motivations from their consequences.

For example if someone is making everyone around them miserable and you'd like to know why, their motive may simply be to make everyone around them miserable including themselves.

Freud was, after all, a genius. You can tell that because people still hate him.

If you have a comprehensive explanation for everything then it decreases uncertainty and anxiety and reduces your cognitive load. And if you can use that simplifying algorithm to put yourself on the side of moral virtue then you’re constantly a good person with a minimum of effort.