有恃无恐随遇而安
[yŏu shì wú kŏng suí yù ér ān]
These words together mean something like 'Fearless because I know/With Courage, Go with the Flow.' It depicts an attitude of being self-assured, perhaps due to having support or confidence from somewhere. Despite that, there is also a willingness to accept any situation without worry, embodying adaptability and contentment.