This applies to each of the terms in which there are two large and three small letters.
In the case of iron, however, this applies only if the metal is perfectly pure.
This applies to your shoes and jewelry as well.
In the third book he applies the principles of the atomic philosophy to explain the nature of the mind and vital principle, with the view of showing that the soul perishes with the body.
The criticism that applies to the first of the above contentions applies mutatis mutandis to the second.
