When I take him to the mountains I might just push him from the cliff.
Why would you do something to harm him like that?
It's the best solution in my mind. I want to know how much he matters to me.
That is murder and very wrong. You need to stop thinking about doing that and be a better person.
That's why it's called a thought. It doesn't matter that I'm thinking about it.
You're right, just thinking about something isn't wrong but the actual action would be illegal. You shouldn't ever actually push someone off of a cliff.