Date: 1273

"According to the Philosopher (Ethic. ix, 8), a thing seems to be chiefly what is principle in it; thus what the governor of a state does, the state is said to do. In this way sometimes what is principle in man is said to be man; sometimes, indeed, the intellectual part which, in accordance with ...

— St. Thomas Aquinas (1225-1274)

Date: 1273

"But since habit is a principle of act, sometimes the name conscience is given to the first natural habit--namely, 'synderesis': thus Jerome calls 'synderesis' conscience (Gloss. Ezech. 1:6); Basil, the 'natural power of judgment,' and Damascene says that it is the 'law of our intellect.'"

— St. Thomas Aquinas (1225-1274)

Date: 1273

"The body is ruled by the soul, and the irascible and concupiscible powers by the reason, but in different ways."

— St. Thomas Aquinas (1225-1274)

Date: 1273

"For the body obeys the soul blindly without any contradiction, in those things in which it has a natural aptitude to be moved by the soul: whence the Philosopher says (Polit. i, 3) that the 'soul rules the body with a despotic command' as the master rules his slave: wherefore the entire movement...

— St. Thomas Aquinas (1225-1274)

Date: 1273

"Hence the Philosopher says (Polit. i, 3) that "the soul rules the body like a despot," i.e. as a master rules his slave, who has no right to rebel."

— St. Thomas Aquinas (1225-1274)

Date: 1273

"As the gloss says, 'in the sin of fornication the soul is the body's slave in a special sense, because at the moment of sinning it can think of nothing else': whereas the pleasure of gluttony, although carnal, does not so utterly absorb the reason."

— St. Thomas Aquinas (1225-1274)

Date: 1273

"The members of the body are not principles but merely organs of action: wherefore they are compared to the soul which moves them, as a slave who is moved but moves no other."

— St. Thomas Aquinas (1225-1274)

Date: 1273

"Therefore the consent to a sinful act always proceeds from the higher reason: because, as Augustine says (De Trin. xii, 12), 'the mind cannot effectively decide on the commission of a sin, unless by its consent, whereby it wields its sovereign power of moving the members to action, or of restrai...

— St. Thomas Aquinas (1225-1274)

Date: 1273

"On the contrary, Augustine proves (De Lib. Arb. i, 11) that 'nothing else than his own will makes man's mind the slave of his desire.'"

— St. Thomas Aquinas (1225-1274)

Date: 1273

"Further, whoever sins mortally, becomes the slave of the devil, according to Jn. 8:34: 'Whosoever committeth sin is the slave of sin.'"

— St. Thomas Aquinas (1225-1274)