He only is a true atheist to whom the predicates of the Divine Being - for example, love, wisdom and justice - are nothing.

Is it man that possesses love, or is it not much rather love that possesses man?

I have always taken as the standard of the mode of teaching and writing, not the abstract, particular, professional philosopher, but universal man, that I have regarded man as the criterion of truth, and not this or that founder of a system, and have from the first placed the highest excellence of the philosopher in this, that he abstains, both as a man and as an author, from the ostentation of philosophy, i. e., that he is a philosopher only in reality, not formally, that he is a quiet philosopher, not a loud and still less a brawling one.

Wherever morality is based on theology, wherever the right is made dependent on divine authority, the most immoral, unjust, infamous things can be justified and established.

What yesterday was still religion is no longer such today; and what today is atheism, tomorrow will be religion.

The task of the modern era was the realization and humanization of God – the transformation and dissolution of theology into anthropology.

For the religious the holy is truth, for the philosophic the truth is holy.