Thomas Aquinas

"The end of the intellect is truth, just as the end of the appetite is good."

"The contemplation of divine things is the highest human activity."

"Punishment is necessary for the correction of the wicked and the protection of the innocent."

"To live by charity is the highest and most noble form of human action."

"Grace builds on nature; it does not destroy it."

"The intellect is that which learns new things constantly."

"The act of justice is to give each person what is due to them."

"The human person is the image of God, and this means the human intellect is a participation in God's eternal knowledge."

"Music acts as a moral law, it gives soul to the universe, wings to the mind, flight to the imagination."

"Peace is the tranquility of order."

"The existence of God can be proven in five ways."

"Silence is sometimes the highest form of contemplation."

"To surrender the desire of justice is to surrender the desire of peace."

"The natural inclination of every man is to desire knowledge."

"The virtuous person does not act from virtue because they find it difficult; they act from virtue because it has become natural to them."

"Every creature participates in the eternal law."

"The essence of evil is the privation of good."

"Courage is the virtue of facing danger without cowardice."

"Love is a matter of the will more than of the feelings."

"Human happiness is impossible without virtue."

"The common good is the measure of what is just."

"Mercy is the greatest of all virtues."

"The object of faith is the first truth."

"We must love our enemies; for how else can we understand them?"

"Death is the most terrible of all evils, for it is the end of all life."

"The practice of virtue is the way to happiness."

"Authority comes from the natural order, which reflects God's design."

"Understanding grows through the dialogue between reason and revelation."

"The act of understanding is in the intellect, not in the senses."

"To admit one's ignorance is the beginning of wisdom."