If our long-term survival is at stake, we have a basic responsibility to our species to venture to other worlds. Sailors on… — Carl Sagan Copy Share Image
I read the 'Old Testament' all the way through when I was about 13 and was horrified. A few months afterwards I… — Terry Pratchett Copy Share Image
The living is a species of the dead; and not a very attractive one. — Friedrich Nietzsche Copy Share Image
What an extraordinary time to be alive. We're the first people on our planet to have real choice: we can continue killing… — Frances Moore Lappé Copy Share Image
The idea that it is funny to see wild animals coerced into acting like clumsy humans, or thrilling to see powerful beasts… — Desmond Morris Copy Share Image
[Reformers] might be classified as a distinct species having eyes in the back of their heads. — Ellen Glasgow Copy Share Image
The relation of the individual person to the species he belongs to is the most intimate of all relations. — Havelock Ellis Copy Share Image
We have a responsibility to protect the rights of generations, of all species, that cannot speak for themselves today. The global challenge… — Wangari Maathai Copy Share Image
I firmly believe that mathematics does not exist outside of humans. It is something we, as a species, invent. — Keith Devlin Copy Share Image
The facts of microevolution [change within the species] do not suffice for an understanding of macroevolution [theorized change from one species to… — Richard Goldschmidt Copy Share Image
If we lived within our means - by being prudent - the 7 billion people in the world could have everything they… — Jose Mujica Copy Share Image
Gass once wrote: "Language serves not only to express thought but to make possible thoughts which could not exist without it." Here… — Dan Simmons Copy Share Image
The mind is found most acute and most uneasy in the morning. Uneasiness is, indeed, a species of sagacity - a passive… — Johann Wolfgang von Goethe Copy Share Image
I absolutely don't think a sentient artificial intelligence is going to wage war against the human species. — Daniel H. Wilson Copy Share Image
This worship, given therefore to the Trinity of the Father and of the Son and of the Holy Spirit, above all accompanies… — Pope John Paul II Copy Share Image
Owing to this struggle for life, any variation, however slight and from whatever cause proceeding, if it be in any degree profitable… — Charles Darwin Copy Share Image
Power is just using energy in a wise way to get things done. Power has been misinterpreted to mean getting my way… — Elizabeth Lesser Copy Share Image
A cockroach likely has no less brainpower than a butterfly, but we're quicker to deny it consciousness because it's a species we… — Jeffrey Kluger Copy Share Image
There is no object to life. To nature nothing matters but the continuation of the species. — W. Somerset Maugham Copy Share Image
It may be argued that to know one kind of beetle is to know them all. But a species is not like… — E. O. Wilson Copy Share Image
Good teachers are an endangered species because they're giving up because of the tests and everything. — Rafe Esquith Copy Share Image
One cannot avoid a certain feeling of disgust, when one observes the actions of man displayed on the great stage of the… — Immanuel Kant Copy Share Image
We are not, however, a species that can choose the baggage with which we must travel. In spite of our best intentions,… — Dean Koontz Copy Share Image
Everything that makes diversity of kinds, of species, differences, properties... everything that consists in generation, decay, alteration and change is not an… — Giordano Bruno Copy Share Image
Cosmology is among the oldest subjects to captivate our species. And it’s no wonder. We’re storytellers, and what could be more grand… — Brian Greene Copy Share Image