There are two sorts of ignorance: we philosophize to escape ignorance; we start from the one, we repose in the other; they are the goals from which and to which we tend; and the pursuit of knowledge is but a course between two ignorances, as human life is only a traveling from grave to grave.
Sir William Hamilton, 9th BaronetA judgment is the mental act by which one thing is affirmed or denied of another.
Sir William Hamilton, 9th BaronetAn instinct is an agent which performs blindly and ignorantly a work of intelligence and knowledge.
Sir William Hamilton, 9th Baronet