天涯海角有我在海枯石烂还有我
[tiān yá hăi jiăo yŏu wŏ zài hăi kū shí làn hái yŏu wŏ]
'Wherever you are in this world, I will be here; even when everything fades away, I will still remain.' The phrase conveys an unwavering devotion or presence regardless of time or change.