I care not what the sailors say:
All those dreadful thunder-stones,
All that storm that blots the day
Can but show that Heaven yawns;
Great Europa played the fool
That changed a lover for a bull.
Fol de rol, fol de rol.

To round that shell's elaborate whorl,
Adorning every secret track
With the delicate mother-of-pearl,
Made the joints of Heaven crack:
So never hang your heart upon
A roaring, ranting journeyman.
Fol de rol, fol de rol.

William Butler Yeats

http://www.poemhunter.com/poem/crazy-jane-reproved/