Hard agree. Only caveat: don't friggin travel in the left lane unless you're passing. Don't care how fast or slow you're going. Left lane is for going around. Middle/right lane is for cruising. If everyone's obeying that rule then there's no reason to tailgate (not that you should do that anyway. But it does induct you into the assholes club right along with the tailgater)
I'm always a little bummed when stoicism comes up. For some reason people always characterize it as "try not to feel things". But first, that's kinda twisting the intention. And second, it's only a third of the whole philosophy.
The serenity prayer more closely resembles the core idea than what most people focus on. Compare the above quote with it.
If something is outside of your control, don't let it turn you bitter. If there is action you can take to treat those around you justly, you must do so. And then to do these things effectively takes knowledge, wisdom, and (I would argue) empathy.
But nah. Modern take: stoicism = real men shove emotions down. Bleh.