Mill started his career being fascinated by Comte, but horrified by his political philosophy. His libertarian tendencies echoes that of Locke, but go one step further in accepting diversity amongst individuals, claiming that we should not only tolerate, but actually celebrate. At the same time, he is antagonizing conformity to customs. Contrary to Locke who fall back on certain general abstract principles, Mill is an empiricist, bearing some resemblance to Comte. Utility is not against pleasure, but is what maximizes pleasure. Pleasure is not only measured in quantity, but quality as well. Humans are incomparable to swine because we have mental faculties which experience higher pleasures compared to physical ones. The human life is imperfect but preferred. Higher psychological pleasures are of higher quality than lower physical pleasures, "better to be Socrates dissatisfied than a fool satisfied."