Strong analytical power and good skills of critical thinking are fundamental to identifying and resolving many issues in modern societies under the digital age. They also pave the foundation for higher education, lifelong learning outcomes and academic achievement. This course introduces various conceptions of and skills in critical thinking, with the emphasis on applications to issues in ethics and public affairs. Students would learn the basic skills in logic, meaning clarification, media literacy, the detection of cognitive biases and informal fallacies, as well as inductive reasoning and scientific methods.