Theology is Anthropology... [T]he distinction which is made, or rather supposed to be made, between the theological and anthropological predicates resolves itself into an absurdity.

I would rather be a devil in alliance with truth, than an angel in alliance with falsehood.

The power of thought is the light of knowledge, the power of will is the energy of character, the power of heart is love. Reason, love and power of will are perfections of man.

The first and highest law must be the love of man to man. Homo homini Deus est - this is the supreme practical maxim, this is the turning point of the world's History.

Only he is a truly ethical, a truly human being, who has the courage to see through his own religious feelings and needs.

The joys of theory are the sweetest intellectual pleasures of life

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