There are certain restrictive parts of a woman’s constitution that that were given her by nature and which forbid us from applying the same standard of expectation to women as to men.
Although this was written in a 1920 letter, the letter was not publicly published until 1970.
The reason we have cancer and heart disease is the same reason you can't get rid of the wear and tear on your tires on your car: as soon as you use them, you are wearing them away. You can't make eternal tires, and it's the same with the human body.
If a hundred-foot oak tree had the mind of a human, it would only grow to be ten feet tall!
There's something really magical about trying to see things in new ways that go beyond, in some sense, the biological human experience. Light-field photography, too, goes beyond the human experience because our eyes work like conventional cameras.
It's insanely difficult for people to accept the extent to which we are biological organisms without agency.
That there is as yet no drug for immortality - or, for that matter, for muscle growth in the infirm - does not mean that immortality is theoretically or even technically impossible.
If evolution really works, how come mothers only have two hands?
In entirely unrelated news, there's a new proposal to mandate coverage for gay infertility. The problem is that gay infertility is just biology. Two men and two women are not infertile. They're just not capable of impregnating each other. This isn't a medical problem. It's a mental problem.
What the public needs to understand is that these new technologies, especially in recombinant DNA technology, allow scientists to bypass biological boundaries altogether.
Law may prescribe that the male nipples be made equal to the female ones, but they still will not give milk.
. . . in the end, there is nothing a man can do that a woman can't, except be a father.
Your father only has one foot on this earth. And really, really long legs . . .
The underlying reason for convergence seems to be that all organisms are under constant scrutiny of natural selection and are also subject to the constraints of the physical and chemical factors that severely limit the action of all inhabitants of the biosphere. Put simply, convergence shows that in a real world not all things are possible.
Man can have only a certain number of teeth, hair and ideas; there comes a time when he necessarily loses his teeth, hair and ideas.
The only job for which no woman is or can be qualified is sperm donor.
Freedom was conditioned by man's physical body, heredity, and environment.
As soon as we can wrest from Nature the secret of the internal structure of the compounds produced by her, chemical science can then even surpass Nature by producing compounds as variations of the natural ones, which the living cell is unable to construct.
We didn't stay in the caves. We haven't stayed on the planet. With biotechnology, gene sequencing, we are not going to even stay within the limitations of biology.
Man has a limited biological capacity for change. When this capacity is overwhelmed, the capacity is in future shock.
It was a damned good thing men couldn’t have children. Gregory took no shame in admitting that the human race would have died out generations earlier.
As a professor in two fields, neurology and psychiatry, I am fully aware of the extent to which man is subject to biological, psychological and sociological conditions. But in addition to being a professor in two fields I am a survivor of four camps - concentration camps, that is - and as such I also bear witness to the unexpected extent to which man is capable of defying and braving even the worst conditions conceivable.
In reality, we haven't escaped the gravity of life at all. We are still beholden to ecological laws, the same as any other life-form.
I have never been a fan of science fiction. For me, fiction has to explore the combinatorial possibilities of people interacting under the constraints imposed by our biology and history. When an author is free to suspend the constraints, it's tennis without a net.
Maybe everyone else thinks your aversion to food is cute- but not me. I've watched you watch Jill. Here's some tough love: you will never, ever have her body. Ever. It's impossible. She's Moroi. You're human. That's biology. You have a great one, one that most humans would kill for- and you'd look even better if you put on a little weight. Five pounds would be a good start. Hide the ribs. Get a bigger bra size
It is an occupational risk of biologists to claim, towards the end of their careers, that the problems which they have not solved are insoluble.