The cloning of humans is on most of the lists of things to worry about from Science, along with behaviour control, genetic engineering, transplanted heads, computer poetry and the unrestrained growth of plastic flowers. – Lewis Thomas
At this early stage in our evolution, now through our infancy and into our childhood and then, with luck, our growing up, what our species needs most of all, right now, is simply a future. – Lewis Thomas
Doctors, dressed up in one professional costume or another, have been in busy practice since the earliest records of every culture on earth. It is hard to think of a more dependable or enduring occupation, harder still to imagine any future events leading to its extinction. – Lewis Thomas
It is from the progeny of this parent cell that we all take our looks we still share genes around, and the resemblance of the enzymes of grasses to those of whales is in fact a family resemblance. – Lewis Thomas