The immune system has evolved the capacity to react specifically with a very large number of foreign molecules with which it had no previous contact while avoiding reactivity for autologous molecules, naturally antigenic in other species or in other individuals of the same species.
Baruj Benacerraf
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As biologists, we contemplate with admiration and awe the wondrous array of sophisticated cell inter... 
What is the Other?" they ask.
How individuals of the same species surpass each other in these sensations and in other bodily facul... 
My own training is in the field of neuroendocrinology and I really became very fascinated many years... 
Humanity is part of nature, a species that evolved among other species. The more closely we identify... 
I want to know diverse facts about such things as galaxies or molecules or proteins or insect specie... 
Just as a concept becomes a unit when integrated with others into a wider concept, so a genus become... 
With the exception of certain rodents, no other vertebrate except Homo sapiens habitually destroys m... 
I really think that effective acting has to do literally with the movement of molecules. 
I really think that effective acting has to do literally with the movement of molecules. 
Civilised life, you know, is based on a huge number of illusions in which we all collaborate willing... 
No other species anywhere in the world had invented boredom. Perhaps it was boredom, not intelligenc... 
We're basically this very young species, only 200,000 years old. We're one of the newcomers,... 
Canada evolved within the British Empire: it inherited the Parliamentary system, the Cabinet system ... 
The mind of the scholar, if he would leave it large and liberal, should come in contact with other m... 
The mind of the scholar, if he would leave it large and liberal, should come in contact with other m... 
We have experienced, for the first time in this country, a nuclear winter, ... This justice system h... 
I am surprised that paper doesn't pick up the Amazon and Congo basins, regions where there is a larg... 
Indeed, the whole human species is endangered, by nuclear weapons or by other means of wholesale des... 
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She would defend herself, saying that love, no matter what else it might be, was a natural talent. S... 
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What a lonely species we are, searching for signals of life from other galaxies, adopting companion ... 
Species co-evolve with the other species they eat, and very often, a relationship of interdependence... 
Great balls of fire. Don't bother me anymore, and don't call me sugar. 
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My mother had several beautiful parrots and some monkeys; one of the latter was a full-grown male of... 
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We are a naturally hierarchical species. 
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Time is a teacher which in the end it kills all it's students. (Synchronicity 2015 Film) 
All day long you sit and sew,
Though it may be the peculiar happiness of Socrates and other geniuses of his stamp, to reason thems... 
Every revolution begins with one voice crying in the wilderness. 
Measles and TB evolved from diseases of our cattle, influenza from a disease of pigs, and smallpox p... 
May I never neither turn left nor turn right in my journey of life, but may I go straight to Christ ... 
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With our evolved busy hands and our evolved busy brains, in an extraordinarily short period of time ... 
No one should let yesterday use up too much of today. Easy to say, hard to live. 
It may be the kind where, at the age of thirty, you sit in some bar hating everybody who comes in lo... 
Medicine, which I wouldn't be without, has also been a force for... less good. For example, if y... 
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