Thomas Aquinas

"The end of the intellectual life is truth."

"Beauty is the brightness that makes truth evident."

"Sin is not an action; it is a turning away from what is good."

"All knowledge begins in wonder."

"The contemplation of God's works is necessary for the human soul."

"Work is noble; idleness is degrading."

"Charity is the friendship between man and God."

"Prudence is the virtue by which we recognize the good and choose it."

"A man's perfect companion is a book."

"The common good is nothing else than the sum of those conditions of social life."

"Justice without mercy is cruelty; mercy without justice is weakness."

"The greatest things are achieved by individual effort."

"It is a great compliment to a man to say he is a man of principle."

"The virtue of hope differs from the virtue of prudence in that hope seeks future good."

"Eating should be done with moderation and wisdom."

"The proper response to beauty is appreciation and gratitude."

"Friendship is the source of the greatest pleasures."

"We are obliged by the law of nature to love our fellow man."

"A man can achieve nothing more noble than to bring joy to others."

"The intellect is to the mind what vision is to the body."

"Truth can never contradict truth."

"To act against conscience is to act immorally."

"Temperance in speech is the foundation of peaceful relations."

"The deepest principle of human nature is the craving to be appreciated."

"The wise bear all the wrongs of life with equanimity."

"Habit is second nature."

"The purpose of education is to prepare souls for communion with God."

"Virtue is nothing else than a perfection of the soul."

"True friends are those who love us for what we are."

"A good action is one which promotes the well-being of another."