Aristotle

"The happiness of those who want to be popular depends on others; the happiness of those who seek pleasure fluctuates with moods outside their control; but the happiness of the wise grows under their own power."

"Small acts of goodness, like small acts of negligence, accumulate."

"The worst form of inequality is to try to make unequal things equal."

"All animals are created by the Deity to live in a State of Nature."

"The question of whether machines can think is about as relevant as the question of whether submarines can swim."

"Nothing is by accident. It is all design."

"The most powerful form of learning is through action."

"A man should be concerned not merely with the style of his prose, but with the truth of his statements."

"Change in all things is sweet."

"The whole is naturally prior to the part."

"Quality is not an act, it is a habit."

"Anybody can become angry—that is easy. But to be angry with the right person and to the right degree and at the right time and for the right purpose, and in the right way—that is not within everybody's power and is not easy."

"The supreme good is worthy of the name good only insofar as it is the highest human good."

"Nature abhors a vacuum."

"Rhetoric may be defined as the faculty of observing in any given case the available means of persuasion."

"The purpose of work is to earn leisure."

"Death cannot be experienced by the dead because, for them, it is nonexistent. When we exist, death is not; and when death exists, we are not."

"Evils lack strength when they are recognized and faced."

"A tyrant must put on the appearance of uncommon devotion to religion. With the approving nods and active good will of the priests, he can order a garrotte and call it a law."

"A superior man is modest in his speech, but exceeds in his actions."

"The first principle is that you must not fool yourself, and you are the easiest person to fool."

"For one swallow does not make a summer, nor does one day."

"Nothing exists or happens by chance, only by necessity and nature."

"The law is a form of order."

"There is something in the pang of change more than the heart can bear."

"What is the purpose of life? It is not happiness. It is not virtue. It is not perfection. It is a life of the highest achievement of which we are capable."

"Time is the measure of movement; it measures the motion between past and future."

"The wheel turns, and the world changes."

"Hope is a thing to be encouraged."

"A good friend is like a four-leaf clover; hard to find and lucky to have."