"If the highest aim of a captain were to preserve his ship, he would keep it in port forever."

"The form of the human body is the soul."

"The Church has the power to depose temporal rulers who are heretics."

"The good of the intellect is truth; the good of the will is the good."

"It is lawful to kill a man who is an enemy of the commonwealth, even if he is not actually committing a crime."