1.
Intelligence is based on how efficient a species became at doing the things they need to survive.
Charles Darwin
2.
The more Indians we can kill... the less will have to be killed the next war, for the more I see of these Indians, the more convinced I am that they all have to be killed or be maintained as a species of paupers.
William Tecumseh Sherman
4.
I have no particular love for my species, but own to an exhaustless fund of compassion
Dorothea Dix
6.
We're dead as a species if we don't tell stories, because then we don't know who we are.
Alan Rickman
8.
If evolution exists in every living species, likewise so too does devolution.
Samael Aun Weor
9.
What happens to other species also happens to us.
Bill Nye
10.
We are the only species on earth capable of preventing our own flowering.
David Whyte
11.
We're the only species that listens to Michael Bublé when we have sex. That's gotta be wrong.
Chris D'Elia
12.
I can't think of a greater legacy than, "Because you lived, another species survived."
Paul Watson
15.
Endangered species are our friends.
Yao Ming
16.
Greed is merely a species of nearsightedness.
Henry Ford
17.
Homosexuality is found in over 450 species. Homophobia is found in only 1. Which one seems unnatural now?
Amber Rose
18.
The fewer species there are and the fewer species we know about, the fewer questions we even know to ask.
Lynn Margulis
19.
Nothing is more likely to destroy a species or a nation than a determination to survive at all costs
C. S. Lewis
20.
Humans need to be a multiplanet species.
Elon Musk
21.
... not one living species will transmit its unaltered likeness to a distant futurity.
Charles Darwin
23.
I never liked my own species. On why so many of his comics are about animals, in an interview.
Gary Larson
26.
If a species is diverse, it can survive and prosper. If a species is homogeneous, it is vulnerable.
Richard Koch
27.
All laws are an attempt to domesticate the natural ferocity of the species.
John W. Gardner
28.
The email of the species is deadlier than the mail.
Stephen Fry
29.
What we do, as a conscious species, is set markers for ourselves. Once we reach one marker, we advance to the next.
Thomas Ligotti
30.
I've come through things that would have felled an ox. That fills me with optimism, not just for myself but for our particular species.
Elizabeth Taylor
31.
The facts of microevolution [change within the species] do not suffice for an understanding of macroevolution [theorized change from one species to another].
Richard Goldschmidt
32.
Look at history. It's not the account of a species at peace.
Salman Rushdie
33.
I feel that one species, mankind, doesn't have the right to exterminate
Ernst Mayr
34.
For one species to mourn the death of another is a new thing under the sun.
Aldo Leopold
36.
We are one species. We are starstuff.
Carl Sagan
39.
A language, like a species, when extinct, never... reappears.
Charles Darwin
41.
There are 400,000 species of beetles on this planet, but only 8,000 species of mammals.
John B. S. Haldane
43.
The "Otherizing" of women is the oldest oppression known to our species, and it's the model, the template, for all other oppressions.
Robin Morgan
45.
It's a moral question about whether we have the right to exterminate species.
David Attenborough
46.
It is almost as hard for us to sense our own species quality as it is to sense our species smell.
Lois Crisler
47.
It's almost impossible to overpay the truly extraordinary CEO... but the species is rare.
Warren Buffett
49.
When you understand a species' art, you understand that species.
Timothy Zahn
50.
The immense majority of our species are candidates for humanity, and nothing more.
Henri Frederic Amiel