All good things must come to an end.
Voice of the people, voice of God: Latin expresion used to underline the fact that the majority decides when a decison needs to be taken.
The phrase means "never" and is similar to phrases like "when pigs fly". The Kalendas, also written Calends were specific days of the Roman calendar, from the beginning of the month when the debts were paid. Since Greek Kalends never occur, when ...