"Although modesty is natural to man, it is not natural to children. Modesty only begins with the knowledge of evil."
Jean-Jacques Rosseau
"The dread of evil is a much more forcible principle of human actions than the prospect of good."
John Locke
"Life is neither good or evil, but only a place for good and evil."
Marcus Aurelias
"There is nothing good or evil save in the will."
Epictetus
"An evil man injures himself earlier than he harms the others."
St. Augustine of Hippo
"Men’s actions are derived from the opinions they of the good or evil, which from those actions rebound unto themselves."
Thomas Hobbes
"If evil be spoken of you and it be true, correct yourself, if it be a lie, laugh at it."
Epictetus
"Life is neither good or evil, but only a place for good and evil."
Marcus Aurelias
"False words are not only evil in themselves, but they infect the soul with evil."
Socrates
"Is God willing to prevent evil, but not able? Then he is not omnipotent.
Is he able, but not willing? Then he is malevolent.
Is he both able and willing? Then whence cometh evil?
Is he neither able nor willing? Then why call him God?"
Epicurus
"Moral philosophy is nothing else but the science of what is good, and evil, in the conversation, and society of mankind. Good, and evil, are names that signify our appetites, and aversions; which in different tempers, customs, and doctrines of men, are different."
Thomas Hobbes
"Money, it has been said, is the cause of good things to a good man, of evil things to a bad man."
Philo of Alexandria