With many shared ideas on process cosmology, Charles Hartshorne and Roger Ames differentiate from each other on the issue of theism. Ames introduces the principles of process cosmology into the interpretation of the Confucian view of human nature and ethics. By this, he alleviates the defects of Ren of Consanguinity (血親之仁) and argues that Confucianism is a tradition without the idea of transcendental theism but instead has a human-centered religious sense. This human-centered religious sense refers mainly to one's growth and creation in his/her correlativeness and cooperation with others in the world. This idea is an inspiration to process thinkers expanding process metaphysics to the theory of social life. In harmony with process cosmology, Hartshorne puts forward a theism which is different from the kind of theism refused by Ames, but his theism is compatible with Ames' humanism by its affirmation of human growth and creation and of the intrinsic value in all things in the world. Furthermore, theism can solve the problem of value annihilation in the temporal world -- a problem highlighted by process cosmology -- better than role ethics and the classic theory of immortality in Confucianism raised by Qian Mu (錢穆). Therefore, Hartshorne's theism could be a complementary to Ames's Confucian role ethics with humanism as its characteristic.