“99.99 percent of all species that have ever lived are no longer with us.”

“The fact is that no species has ever had such wholesale control over everything on earth, living or dead, as we now have. That lays upon us, whether we like it or not, an awesome responsibility. In our hands now lies not only our own future, but that of all other living creatures with whom we share the earth.”

“In three minutes, 98 percent of all the matter there is or will ever be has been produced. We have a universe”

“One species on the planet, and one species only, has reached the point of being able to have an impact on the evolutionary fortunes of all other species and upon the functioning of all ecosystems. We also have, in a way that is not true for any other species, a relationship to the planet as a whole and to the future. We live with all life.”

“If nobody ever worried about what was in other people's heads, we’d all be 33 percent more effective in our lives and our jobs.”

“Let us beware of saying that death is the opposite of life. The living being is only a species of the dead, and a very rare species.”