ain't no mountain high enough

two weeks ago i was chatting to 2 colleagues whilst waitressing (job: 40th wedding anniversary) and ended up in awe of their sporting achievements

1 of them runs ultramarathons (think 200+km type of runs; forget the glamour of the london marathon) and has won world titles before the other has rowed across the atlantic. 3 times

this truly in line with the chinese saying,

yi4 shan1 hai2 bi3 yi4 shan1 gao1

or, "there will always be a taller mountain" (something like that)