"Better then to be a contented pig than an unhappy Socrates?"

This paraphrases a line by the philosopher John Stuart Mill, from his publication Utilitarianism (1863):

"It is better to be a human being dissatisfied than a pig satisfied; better to be Socrates dissatisfied than a fool satisfied. And if the fool, or the pig, are of a different opinion, it is because they only know their own side of the question."