This document provides an overview of business ethics and ethical decision-making. It discusses: 1) Whether human nature is inherently good or evil is still debated, and influences perspectives on business ethics. 2) Ethics exist on a matrix with law, where law sets minimum standards but ethics should aim higher. 3) Major theories in business ethics are reviewed to provide managers with accountable approaches to make ethical decisions. 4) The ideal worlds envisioned by various thinkers, like utopias and peach gardens, aim to build societies without evils like harm, oppression or corruption.