1. Barlow, C. (1994). Evolution extended: Biological debates on the meaning of life. Cambridge: MIT Press.
2. Barlow, C. (1997). Green space, green time: The way of science. New York: Springer.
3. Barrow, J. D., & Tipler, F. J. (1994). The anthropic cosmological principle. Oxford: Oxford University Press.
4. Buber, M. (1937, 1970). I and Thou (W. Kauffman, Trans.). New York: Scribner’s.
5. Carroll, S. (2016). The big picture: On the origins of life, meaning, and universe itself. New York: Dutton.