¹ Naess, Arne, The Deep Ecological Movement: Some Philosophical Aspects, Philosophical Inquiry 1986, reprinted in Sessions book p. 68.

² Sale, Kirkpatrick, The cutting edge: deep ecology and its critics, The Nation, May 14, 1988 v246 n 19 p670(5)

³ Wilber, Ken Sex, Ecology, Spirituality, The Spirit of Evolution, Shambhala, Boston, 1995, p. 167

⁴ ibid

⁵ ibid p. 106