I am to live, to breathe and to fight. With logic and rational, I can give light. For sense, for purpose, an argument, true. If nothing at all, then just to do.

Getting you some cash, the start of a trap, laid under the seas, or connecting poles to let you speak. Don't let me get all tangled up. What am I?

In the US, it's no problem if you grab me in public. In fact, it's expected. In the UK, you will probably get punched first and then some time in prison.

I bear all things, believe all things, hope all things, and endure all things.

If I’m in your mouth, you have improved it, but if I’m top of mind, you get a title.