In turn each of these three grades has three qualities: some are very wet, some very dry, some moderate, These distinctions are of the greatest importance in respect of the crops, for the skilled husbandman plants spelt rather than wheat in wet land, and on dry land barley rather than spelt, in medium land both.

These two great divisions interchanged their work every year, the soldiers becoming husbandmen, and the husbandmen soldiers.

Besides, men cannot foresee future events, in this uncertainty of human affairs; they would not so marry, if they could foretell the causes of their dislike and separation; or parents, if they knew the hour of their children's death, so tenderly provide for them; or an husbandman sow, if he thought there would be no increase; or a merchant adventure to sea, if he foresaw shipwreck; or be a magistrate, if presently to be deposed.