A word once let out of the cage cannot be whistled back again.
I shall not altogether die.
Virtue lies half way between two opposite vices.
And take back ill-polished stanzas to the anvil.
He who speaks ill of an absent friend, or fails to take his part if attacked by another, that man is a scoundrel.
Dismiss the old horse in good time, lest he fail in the lists and the spectators laugh.