ABSTRACT
Intuitionism: "Good" is indefinable, there are objective moral truths, and the basic moral truths are self-evident to a mature mind. Intuitionism says that "good" is an indefinable notion and that ethics is based on objective, self-evident moral truths. Moore started with a simple question: What does the word "good" mean? This question is the key to understanding morality. Since "good" is indefinable, we can't prove moral conclusions using only non-moral premises. Morality is a distinct area of reality – just as numbers, mental phenomena, and physical phenomena are distinct areas. "Hating people is wrong" is an objective moral truth. Few speak of "moral intuitions" or "self-evident moral truths." But many appeal to moral principles that they take to be objective but not further provable or justifiable. Morality has to be based on self-evident truths. Moral education is difficult because children are swayed so easily by their feelings and by peer pressures.
