foreign term Etymology: French if youth only knew, if age only could!
SI JEUNESSE SAVAIT, SI VIEILLESSE POUVAIT!
Meaning of SI JEUNESSE SAVAIT, SI VIEILLESSE POUVAIT! in English
Merriam Webster. Explanatory English dictionary Merriam Webster. Толковый словарь английского языка Мерриам-Уэбстер. 2012