百毒不侵刀枪不入安安静静不哭不闹
[băi dú bù qīn dāo qiāng bù rù ān ān jìng jìng bù kū bù nào]
'Immune to poisons and unharmed by weapons; calm, quiet, and won't cry.' It signifies resilience against all adversities while also staying composed, quiet, not drawing attention, and maintaining one's cool even in difficult times.