The difficulty of this passage consists in determining the signification of the terms [Greek: gnorima aemin] and [Greek: gnorima aplos] I have translated them without reference to their use elsewhere, as denoting respectively what is and what may be known. All truth is [Greek: gnorimon aplos], but that alone [Greek: aemin] which we individually realise, therefore those principles alone are [Greek: gnorima aemin] which we have received as true. From this appears immediately the necessity of good training as preparatory to the study of Moral Philosophy for good training in habits will either work principles into our nature, or make us capable of accepting them as soon as they are put before us; which no mere intellectual training can do. The child who has been used to obey his parents may never have heard the fifth Commandment but it is in the very texture of his nature, and the first time he hears it he will recognise it as morally true and right the principle is in his case a fact, the reason for which he is as little inclined to ask as any one would be able to prove its truth if he should ask. But these terms are employed elsewhere (Analytica Post I cap. 11. sect. 10) to denote respectively particulars and universals The latter are so denominated, because principles or laws must be supposed to have existed before the instances of their operation.