No one knows the diversity in the world, not even to the nearest order of magnitude. ... We don't know for sure how many species there are, where they can be found or how fast they're disappearing. It's like having astronomy without knowing where the stars are.
E. O. WilsonIf we lose half the species, which could happen by the end of the century if we don't do anything, that's going to create a big difference down the line in the stability and even the economic potential in the living world. Irreversibly.
E. O. WilsonSecular humanists can sit around and talk about their love of humanity, but it doesn't stack up against a two-millennium-old funeral high mass.
E. O. Wilson