Thomas Aquinas

"The universe is ordered according to divine wisdom."

"A man should not fear death, but rather the loss of his soul."

"The senses are the gateway to knowledge."

"In all creation, there is a harmony and order that reflects God's mind."

"The essence of a thing is what it is in itself."

"To understand is to perceive the unity in diversity."

"The fulfillment of human life comes through the exercise of virtue."

"It is better to illuminate than merely to shine; better to give to others than merely to possess."

"The natural law is written on the heart of every human being."

"Ignorance is not innocence, but only ignorance."

"The movement toward God is the movement toward perfect happiness."

"All reasoning begins from principles that are self-evident."

"The will follows the intellect; thus the mind is sovereign."

"To love another is to desire their good."

"The highest manifestation of life consists in this: that a being governs its own actions. A being that is always subject to external forces is hardly living."

"Wonder is the beginning of wisdom."

"To live well is to act well."

"The natural law is written and promulgated by God; hence it is unchangeable."

"Art imitates nature as closely as possible."

"There is nothing in the intellect that was not first in the senses."

"Gratitude is the willingness to recognize the unearned increments that one has received."

"Every agent acts for an end."

"The test of a first-rate intelligence is the ability to hold two opposed ideas in the mind at the same time."

"Beauty is that which calms the restless mind."

"To disparage the dictate of reason is the height of absurdity."

"We cannot live only for ourselves. A thousand fibers connect us with our fellow men; and among those fibers, as sympathetic threads, we feel a responsibility for the actions of others."

"The principal function of the intellect is to know truth."

"It is not easy to arrange the words of truth so as to please all."

"Hope is the movement of the soul toward what is not yet possessed."

"The greatest delight in the pursuit of truth is the discovery of truth."