Hesiod. Works and Days. (Lines 448-457).
Mark, when you hear the voice of the crane (*H17) who cries year by year from the clouds above, for she give the signal for ploughing and shows the season of rainy winter; but she vexes the heart of the man who has no oxen. Then is the time to feed up your horned oxen in the byre; for it is easy to say: `Give me a yoke of oxen and a waggon,' and it is easy to refuse: `I have work for my oxen.' The man who is rich in fancy thinks his waggon as good as built already -- the fool! He does not know that there are a hundred timbers to a waggon. Take care to lay these up beforehand at home.