“ We now know not only of the existence of a break between the living and non - living world, but also that it represents the most dramatic and fundamental of all the discontinuities of nature.
„ Praegu me teame lisaks tühiku olemasolule elusa ja eluta maailma vahel ka seda, et see on kõigist looduses eksisteerivatest eraldatustest kõige rabavam ja fundamentaalsem.