Thomas Aquinas,
Summa Theologiae — Question 33 - OF FRATERNAL CORRECTION…
“ Nevertheless when, guided by prudence, we perform some action aright which is directed to the end of some virtue, such as temperance or fortitude, that action belongs chiefly to the virtue to whose end it is directed. Since, then, the admonition which is given in fraternal correction is directed to the removal of a brother's sin, which removal pertains to charity, it is evident that this admonition is chiefly an act of charity, which virtue commands it, so to speak, but secondarily an act of prudence, which executes and directs the action. ”
