Western Buddhist monastics and priests such as Nanavira Thera, Bhikkhu Bodhi, Nyanaponika Thera, Robert Aitken, Taigen Dan Leighton, and Matthieu Ricard have written texts on Buddhist philosophy. A feature of Buddhist thought in the West has been a desire for dialogue and integration with modern science and psychology, and various modern Buddhists such as Alan Wallace, James H. Austin, Mark Epstein and the 14th Dalai Lama have worked and written on this issue. Another area of convergence has been Buddhism and environmentalism, which is explored in the work of Joanna Macy. Another Western Buddhist philosophical trend has been the project to secularize Buddhism, as seen in the works of Stephen Batchelor.