Well: about eternal things no one deliberates; as, for instance, the universe, or the incommensurability of the diameter and side of a square.
Nor again about things which are in motion but which always happen in the same way either necessarily, or naturally, or from some other cause, as the solstices or the sunrise.
Nor about those which are variable, as drought and rains; nor fortuitous matters, as finding of treasure.
Nor in fact even about all human affairs; no Lacedæmonian, for instance, deliberates as to the best course for the Scythian government to adopt; because in such cases we have no power over the result.
But we do deliberate respecting such practical matters as are in our own power (which are what are left after all our exclusions).
I have adopted this division because causes seem to be divisible into nature, necessity, chance, and moreover intellect, and all human powers.
And as man in general deliberates about what man in general can effect, so individuals do about such practical things as can be effected through their own instrumentality.
Again, we do not deliberate respecting such arts or sciences as are exact and independent: as, for instance, about written characters, because we have no doubt how they should be formed; but we do deliberate on all buch things as are usually done through our own instrumentality, but not invariably in the same way; as, for instance, about matters connected with the healing art, or with money-making; and, again, more about piloting ships than gymnastic exercises, because the former has been less exactly determined, and so forth; and more about arts than sciences, because we more frequently doubt respecting the former.
So then Deliberation takes place in such matters as are under general laws, but still uncertain how in any given case they will issue, i.e. in which