Does Objective Morality Exist? - A philosophical presentation and discussion

Two possible arguments against the existence of objective morality (and possible responses)

Nietzsche: There is No Objective Right or Wrong | Brian Leiter

An argument against objective morality that defeats itself

Can Ethics be Objective? Destiny and CosmicSkeptic

Dr. Darren Staloff, Hume's Theory of Morality

Is Moral Skepticism Self-Refuting? (No, but it has other problems)

Metaphysical Objections to Normative Truth (Thomas Scanlon)

DEBATE: Is Morality Objective? | Alex O’Connor vs. Craig Biddle

What is Morality?

Objective Morality - Muhammad Hijab vs Atheist+Agnostic | Speakers Corner Part 1

Morality Proves The Existence Of God | Hamza Tzortzis

Morality Can't Be Objective, Even If God Exists (Morality p.1)

Think Fast, Talk Smart: Communication Techniques

Objective Morality Without God

A.J. Ayer's Emotivist Theory of Moral Language

John Locke's argument, from 1689, for Divine Morality -- it's strengths and weaknesses

Hume's Ethics

Moral Relativism - Explained and Debated

Where Does Morality Come From? | With Sam Harris

OBJECTIVE MORALITY - Alex O'Connor and Roger Crisp