go without saying

Calque of French aller sans dire.

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go without saying (third-person singular simple present goes without saying, present participle going without saying, simple past went without saying, past participle gone without saying)

1. (idiomatic, impersonal) To not need to be said or mentioned; to be obvious, apparent, clear, or already established.

   It goes without saying that our volunteers love their work.

   • 1960 March, G. Freeman Allen, “Europe's most luxurious express - the "Settebello"”, in Trains Illustrated, page 141:

     It almost goes without saying that the train is fully soundproofed, with double-glazed windows and highly efficient air-conditioning by the British firm of J. Stone.

• needless to say
• stand to reason
• self-explanatory