The age of enlightenment saw a questioning of religious and traditional values. If religion is questioned, then so to is morality. Philosophers needed to base moral system on justifiable grounds.

• 启蒙时代发现了宗教和传统价值的问题。如果宗教受到质疑，那么道德也一样。哲学家需要把道德体系建立在公正的基础上。