At Present Scientists Do Not Look For

People May Hope That The Meat They Buy Came From An Animal Who Died Without Pain, But They Do Not Really Want To Know About It. Yet Those Who, By Their Purchases, Require Animals To Be Killed Do Not Deserve To Be Shielded From This Or Any Other Aspect Of The Production Of The Meat They Buy.

If We Compare A Severely Defective Human Infant With A Nonhuman Animal, A Dog Or A Pig, For Example, We Will Often Find The Nonhuman To Have Superior Capacities, Both Actual And Potential, For Rationality, Self-consciousness, Communication And Anything Else That Can Plausibly Be Considered Morally Significant.

The Belief That The Animals Exist Because God Created Them - And That He Created Them So We Can Better Meet Our Needs - Is Contrary To Our Scientific Understanding Of Evolution And, Of Course, To The Fossil Record, Which Shows The Existence Of Non-human Primates And Other Animals Millions Of Years Before There Were Any Human Beings At All.

Of All The Arguments Against Voluntary Euthanasia, The Most Influential Is The Slippery Slope: Once We Allow Doctors To Kill Patients, We Will Not Be Able To Limit The Killing To Those Who Want To Die.

Unfortunately For Ethical Egoism, The Claim That We Will All Be Better Off If Every One Of Us Does What Is In His Or Her Own Interest Is Incorrect. This Is Shown By What Are Known As "prisoner's Dilemma" Situations, Which Are Playing An Increasingly Important Role In Discussions Of Ethical Theory... At Least On The Collective Level, Therefore, Egoism Is Self-defeating - A Conclusion Well Brought Out By Parfit In His Aforementioned Reasons And Persons.