The joys of theory are the sweetest intellectual pleasures of life

In the consciousness of the infinite, the conscious subject has for his object the infinity of his own nature.

Christianity set itself the goal of fulfilling man’s unattainable desires, but for that very reason ignored his attainable desires. By promising man eternal life, it deprived him of temporal life, by teaching him to trust in God’s help it took away his trust in his own powers; by giving him faith in a better life in heaven, it destroyed his faith in a better life on earth and his striving to attain such a life. Christianity gave man what his imagination desires, but for that very reason failed to give him what he really and truly desires.

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.

Faith is essentially intolerant ... essentially because necessarily bound up with faith is the illusion that one's cause is also God's cause.

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

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.