Thomas Aquinas

“ It would seem that prudence does not pertain to the active life. For just as the contemplative life belongs to the cognitive power, so the active life belongs to the appetitive power. Now prudence belongs not to the appetitive but to the cognitive power. Therefore prudence does not belong to the active life. ”

“ That the durability of the active life in the present state surpasses the durability of the contemplative life arises not from any property of either life considered in itself, but from our own deficiency, since we are withheld from the heights of contemplation by the weight of the body. ”

“ Prudence is said to be intermediate between the intellectual and the moral virtues because it resides in the same subject as the intellectual virtues, and has absolutely the same matter as the moral virtues. But this third kind of life is intermediate between the active and the contemplative life as regards the things about which it is occupied, because it is occupied sometimes with the contemplation of the truth, sometimes with eternal things. ”