Serpents engender in still waters. [ Proverb ]

Music can noble hints impart.
Engender fury, kindle love;
With unsuspected eloquence can move,
And manage all the man with secret art. [ Addison ]

As well the noble savage of the field
Might tamely couple with the fearful ewe;
Tigers might engender with the timid deer;
Wild, muddy boars defile the cleanly ermine,
Or vultures sort with doves; as I with thee. [ Lee ]