Donec eris felix, multos numerabis amicos (idea)

Donec eris felix, multos numerabis amicos, Latin for as long as you are lucky, you will number (or count, have) many friends.

It is a quote from Ovidius' Sorrows (I, 9, 5), which he wrote in exile. He was one of the greatest Roman poets but died after a 9-year exile, abandoned and forgotten by the "friends" he had made in his glory days.