Cells are required to stick precisely to the point. Any ambiguity, any tendency to wander from the matter at hand, will introduce grave hazards for the cells, and even more for the host in which they live. Minor inaccuracies may cause reactions in which neighboring cells are recognized as foreign, and done in. There is a theory that the process of aging may be due to the cumulative effect of imprecision, a gradual degrading of information. It is not a system that allows for deviating.

I can think of a few microorganisms, possibly the tubercle bacillus, the syphilis spirochete, the malarial parasite, and a few others, that have a selective ad…

Statistically the probability of any one of us being here is so small that you would think the mere fact of existence would keep us all in a contented dazzleme…

If we have learned anything at all in this century, it is that all new technologies will be put to use, sooner or later, for better or worse, as it is in our n…

'You are old, Father William.' the young man cried, 'The few locks which are left you are grey; You are hale, Father William-a hearty old man: Now tell me the …

It's amazing when you get to a certain age, and you talk about sleep in the same way you spoke about inebriates 20 or 25 years before. 'Man, I got eight hours …

I'm an old man at fifty-four, without teeth, and with rheumatism.