Ethical Theorists

Lifespan

Hippocrates of Cos

460 BCE - 370 BCE

The father of medicine

Thomas Aquinas

1225 - 1274

Developed the Natural Law Theory of the Catholic Church

Francis Bacon

1561 - 1626

Argued for empiricism and the scientific method

Sir Isaac Newton

1642 - 1727

Philosophiae Naturalis Principia Mathematica

David Hume

1711 - 1776

Disputes all other philosophers whose argument is rooted in the belief in god

Immanuel Kant

1724 - 1804

Developed Deontology and his Categorical Imperative

W.D. Ross

1877 - 1971

Developed a set of rules governing professional behaviors