In academic writing, common knowledge refers to information found in multiple sources without a distinct origin, data that any educated person can consider valid without a source reference. For example, well-known historical dates and long-established ideas for a specific field, like key equations in physics. Observations recognized as common knowledge don´t need a citation.
Liberals espouse a wide array of views depending on their understanding of these principles, but they generally support free markets, free trade, limited government, individual rights (including civil rights and human rights), capitalism, democracy, secularism, gender equality, racial equality, internationalism.