So in the case of mental habits or types of character also it is not enough that the rule we have laid down is correct; we need further to know precisely what this right reason is, and what is the standard which it affords.

The virtues or excellences of the mind or soul, it will be remembered, we divided 139 into two classes, and called the one moral and the other intellectual. The moral excellences or virtues we have already discussed in detail; let us now examine the other class, the intellectual excellences, after some preliminary remarks about the soul. 140