Jowett: kinds of actions

Ath. Let us remember what has been well said by us already, that our ideas of justice are in the highest degree confused and contradictory. Bearing this in mind, let us proceed to ask ourselves once more whether we have discovered a way out of the difficulty. Have we ever determined in what respect these two classes of actions differ from one another ? For in all states and by all legislators whatsoever, two kinds of actions have been distinguished — the one, voluntary, the other, involuntary ; and they have legislated about them accordingly. But shall this new word of ours, like an oracle of God, be only spoken, and get away without giving any explanation or verification of itself ? How can a word not understood be the basis of legislation ? Impossible. Before proceeding to legislate, then, we must prove that they are two, and what is the difference between them, that when we impose the penalty upon either, every one may understand our proposal, and be able in some way to judge whether the penalty is fitly or unfitly inflicted. LAWS BOOK IX