No one's actions can be completely understood unless they are seen in the context of that person's life as a whole.
除非将某人的行动置于其整个生活背景中看待，否则无法完全理解其行动。
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.
直到被完全理解，过去才真正成为过去。