1. Layout should come before routing; no matter how detailed the routing is, if the layout fails, it is all in vain. Life is similar; one must have ideals and long-term plans. 2. If one only seeks comfort in early routing, later detours will lead to dead ends. Life is the same: endure hardships for half a lifetime, and if you fear hardship, you will suffer for a lifetime. 3. Establish certain rules to avoid chaotic routing when situations become complex. Life is similar: freedom and constraints complement each other. 4. Reserve high-quality routing areas for important signals and periods. Life is the same: allocate important time for important matters; your energy distribution determines your level. 5. Sensitive signals are strong interference sources. Life is similar: those who are close to vermilion become red, and those who are close to ink become black.