Pierre Teilhard de Chardin

Pierre Teilhard de Chardin SJ (; May 1, 1881 – April 10, 1955) was a French philosopher and Jesuit priest who trained as a paleontologist and geologist and took part in the discovery of Peking Man and Piltdown Man. Teilhard conceived the idea of the Omega Point and developed Vladimir Vernadsky's concept of Noosphere. Some of his ideas came into conflict with the Magisterium of the Catholic Church. He was reprimanded and his works were denounced by the Holy Office.

Teilhard's primary book, The Phenomenon of Man, set forth a sweeping account of the unfolding of the cosmos. He abandoned traditional interpretations of creation in the Book of Genesis in favor of a less strict interpretation. This displeased certain officials in the Roman Curia and in his own order who thought that it undermined the doctrine of original sin developed by Saint Augustine. Teilhard's position was opposed by his Church superiors, and some of his work was denied publication during his lifetime by the Roman Holy Office. The 1950 encyclical Humani generis condemned several of Teilhard's opinions, while leaving other questions open. However, some of Teilhard's views became influential in the reforms of the Second Vatican Council. More recently, Pope John Paul II indicated a positive attitude towards some of Teilhard's ideas. In 2009, Pope Benedict XVI praised Teilhard's idea of the universe as a "living host".