I am wanting to learn about what these four thinkers have offered us through their lifetime and their writing.
They lived recently in respect to antiquity on through the Middle Ages and after America was Founded as a nation.
They have been called the Masters of Suspicion. All four spoke very directly on the subject of religion in ways that most certainly impact our ideas of reality.
Each one has had an impact on our life. Feuerbach is not so well known as the other three. It is interesting that Marx, Nietzsche, and Freud—all three—are seen in a negative way by so many of us. But, each and every one of them belong to the most respected thinkers of Modern times—especially is that true of Karl Marx even though his utopian ideas of society have fallen into so much discredit.
We should not fool ourselves about the value each of these men have provided us.