Old sayings (6)
I believe the answer is:
adages
'old sayings' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for adages that I've seen before include "Old sayings, proverbs" , "Aphorisms" , "Old sayings or maxims" , "Proverbs from sad age" , "Proverbs or maxims" .)