[387a]
Socrates
Then actions also are performed according to their own nature, not according to our opinion. For instance, if we undertake to cut anything, ought we to cut it as we wish, and with whatever instrument we wish, or shall we, if we are willing to cut each thing in accordance with the nature of cutting and being cut, and with the natural instrument, succeed in cutting it, and do it rightly, whereas if we try to do it contrary to nature we shall fail and accomplish nothing?
Then actions also are performed according to their own nature, not according to our opinion. For instance, if we undertake to cut anything, ought we to cut it as we wish, and with whatever instrument we wish, or shall we, if we are willing to cut each thing in accordance with the nature of cutting and being cut, and with the natural instrument, succeed in cutting it, and do it rightly, whereas if we try to do it contrary to nature we shall fail and accomplish nothing?

