Heaven and hell suppose two distinct species of men, the good and the bad. But the greatest part of mankind float betwixt vice and virtue.
David Hume

Herein lies our problem. If we level that much land to grow rice and whatever, then no other animal could live there except for some insect pest species. Which is very unfortunate.
Steve Irwin

Historians will have to face the fact that natural selection determined the evolution of cultures in the same manner as it did that of species.
Konrad Lorenz

Homo sapiens is the species that invents symbols in which to invest passion and authority, then forgets that symbols are inventions.
Joyce Carol Oates

Hope is itself a species of happiness, and, perhaps, the chief happiness, which this world affords.
William Samuel Johnson

How individuals of the same species surpass each other in these sensations and in other bodily faculties is universally known, but there is a limit to them, and their power cannot extend to every distance or to every degree.
Maimonides

Humanity is quite a unique species, since it is the only one with the means to wipe itself out.
Ramman Kenoun

I accept extinction as best explaining disjoined species. I see that the same cause must have reduced many species of great range to small, and that it may have reduced large genera to so small, and of families.
Asa Gray

I believe the world is increasingly in danger of becoming split into groups which cannot communicate with each other, which no longer think of each other as members of the same species.
Carrie P. Snow

I believe we are still so innocent. The species are still so innocent that a person who is apt to be murdered believes that the murderer, just before he puts the final wrench on his throat, will have enough compassion to give him one sweet cup of water.
Maya Angelou

I describe not men, but manners; not an individual, but a species.
Henry Fielding

I first began to dry specimens for preservation carelessly perhaps at first, but before the season was over, I had collected between one and two hundred species.
George Bentham

I fully support the goal of species protection and conservation and believe that recovery and ultimately delisting of species should be the U.S. Fish and Wildlife Service's top priority under ESA.
Dennis Cardoza

I guess Species was a movie made for me and hence I bagged the role. In fact even when acting, I never thought the outcome would be so good which I think it was! The entire role was a challenge. I was to be this strange yet sexy thing which was challenging!
Natasha Henstridge

I had found again and again that the most aberrant population of a species - often having reached species rank, and occasionally classified even as a separate genus - occurred at a peripheral location, indeed usually at the most isolated peripheral location.
Ernst Mayr

I think it's realistic to have hope. One can be a perverse idealist and say the easiest thing: 'I despair. The world's no good.' That's a perverse idealist. It's practical to hope, because the hope is for us to survive as a human species. That's very realistic.
Studs Terkel

I think that my main criticism in that book was directed at the general assumption that adaptation characterizes populations and species, rather than simply the individuals in the populations and species.
George C. Williams

I think that this misses out on some of the interesting narrative realities, which is that it actually doesn't work very well, that eliminating diversity is actually a really good way to make a species and its individuals less robust.
Cory Doctorow

I'm hoping to make a new thing for the world that remains in the mind like a new species of living thing.
Frank Auerbach

If epic poetry is a definite species, the sagas do not fall within it.
Lascelles Abercrombie