It is the safest of times, it is the riskiest of times…. What the Dickens is going on here? – Denton Morrison, on chemicals, technology, and risk, quoted in National Academy

The earth we abuse and the living things we kill will, in the end, take their revenge; for in exploiting their presence we are diminishing our future. – Marya Mannes, More in Anger, 1958

For the first time in the history of the world, every human being is now subjected to contact with dangerous chemicals, from the moment of conception until death. – Rachel Carson, Silent Spring, 1962

The human race will be the cancer of the planet. – Julian Huxley, attributed