You take your sunny highway, I'll cross my single-log bridge - i.e. let's go our separate ways.
Tips
history
阳关 (Yangguan) was a major Han-dynasty pass on the Silk Road in modern Gansu, near Dunhuang. The 'sunny pass' became poetic shorthand for the well-traveled, official route west - hence 阳关道, the broad and approved path.
usage
Almost always used in the proverbial pairing 你走你的阳关道，我过我的独木桥 - 'you go your way, I'll go mine.' On its own it carries the figurative sense of an easy, established path.
