But these matters will be treated of better in their own place. I will now divide this whole subject into three parts. The first will be of gentleness of temper: 116 the second will be that which explains the nature and disposition of clemency; for since there are certain vices which have the semblance of virtue, they cannot be separated unless you stamp upon them the marks which distinguish them from one another: in the third place we shall inquire how the mind may be led to practise this virtue, how it may strengthen it, and by habit make it its own.