為什麼要抽象思考？

John Rawls在 Political Liberalism (1993) 說：
'In political philosophy the work of abstraction is set in motion by deep political conflicts. Only ideologues and visionaries fail to experience deep conflicts of political values and conflicts between these and nonpolitical values. Profound and long-lasting controversies set the stage for the idea of reasonable justification as a practical and not as an episemological or metaphysical problems. We turn to political philosophy when our shared political understandings, ..., break down and equally when we are torn within ourselves.' (44)

'[The work of abstraction] is a way of continuing public discussion when shared understandings of lesser generality have broke down.' (46)

無論如何，平安完成一份作業總是可喜可賀。