Aristotle

"Courage is the first of human qualities because it is the quality which guarantees the others."

"In the arena of human life, the honors and rewards fall to those who show their good qualities in action."

"Misfortune shows those that are not really friends."

"The beauty of the soul shines out when a man bears with composure what needs to be borne."

"Moral excellence comes about as a result of habit."

"Nature does nothing uselessly."

"To run away from trouble is a form of cowardice and, while it might bring temporary peace, it will result in yet more severe problems."

"The educated differ from the uneducated as much as the living from the dead."

"Man is by nature a political animal."

"Even when laws have been written down, they ought not always to remain unaltered."

"There is no great genius without some touch of madness."

"Youth is easily deceived because it is quick to hope."

"The greatest happiness of the greatest number is the foundation of morals and legislation."

"It is impossible for a man to learn what he thinks he already knows."

"The energy of the mind is the essence of life."

"Pay attention to your enemies, for they are the first to discover your mistakes."

"A proper wife should be obedient, but the husband must deserve obedience through virtue."

"The measure of intelligence is the ability to change."

"On matters of style, swim with the current; on matters of principle, stand like a rock."

"We praise a small man if he is brave; we revile a big man if he is a coward."

"Pleasure in the job puts perfection in the work."

"The antidote for fifty enemies is one friend."

"Character may almost be called the most effective means of persuasion."

"The acquisition of knowledge always involves the accumulation of debts."

"All art imitates nature."

"For the things we have to learn before we can do them, we learn by doing them."

"Understanding is not merely remembering."

"It is during our darkest moments that we must focus to see the light."

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

"Good friends, good books, and a sleepy conscience: this is the ideal life."