I was lucky enough to have both of my Grandmothers alive, and mentoring me until I reached adulthood...
My paternal Grandmother was an interesting lady, a little ahead of her time (she was a barnstormer at 16, and ferried planes during WW2):
Be who you are, and who you want to be.
Class isn’t about money; class is about dignity, respect, and honour.
She was also fond of Latin... and I remember a few
Nihil Sine Labore “Nothing without labour”
Semper ubi sub ubi (bad Latin pun – “always wear underwear”)
Aquila non captat muscas “The Eagles doesn’t capture flies” (don’t sweat the small stuff)
My maternal Grandmother was always proud of her Scottish heritage, and always sought to pass on her Gaelic wisdom:
Blood will outlast the rocks, a betrayal of blood will outlast the stars (old Gaelic saying, but I can’t remember the Gaelic).
Cha d'thug gaol luath, nach d'thug fuath clis. (“Quick to love, Quick to anger”)
Cha'n aithnich thu duine gus am bi do ghnothaich ris. (“You will never know a man, until you do business with him.”)
Cha'n fheum an ti a shealbhaicheas an toradh am blàth a mhilleadh. (“He who would enjoy the fruit must not spoil the blossom.”)
Cha dean cridh misgeach breug. (“The inebriated heart will not lie.”)