Should we now explain to UK couples who plan a family that stopping at two children, or at least having one less than first intended, is the simplest and biggest contribution anyone can make to leaving a habitable planet for our grandchildren?
In the 50,000 years that followed—a time four to eight times shorter than the entire length of time the Neanderthals existed—the replacement crowd not only settled on almost every habitable speck of land on the planet, they developed technology that allowed them to go to the moon and beyond.
The number of habitable worlds in our galaxy is certainly in the tens of billions, minimum, and we haven't even talked about the moons. And the number of galaxies we can see, other than our own, is about 100 billion.
A house cannot be made habitable in a day; and, after all, how few days go to make up a century.
Were getting closer and closer to finding a habitable world.
The room has to be comfortable; the house has to look habitable.
The most fertile districts of the habitable globe are now actually cultivated by men for animals, at a delay and waste of aliment absolutely incapable of calculation
I think that what we need to do is we need to think about what scale makes sense for dealing with our need to live within a habitable zone and to do so without using air conditioning and heating in the way that is so incredibly expensive to the environment.
There are only certain intervals of time when life of any sort is possible in an expanding universe and we can practise astronomy only during that habitable time interval in cosmic history.
Habit! that skilful but slow-moving arranger who begins by letting our minds suffer for weeks on end in temporary quarters, but whom our minds are none the less only too happy to discover at last, for without it, reduced to their own devices, they would be powerless to make any room seem habitable.
Man is sitting disconsolate on an anthill one morning. God asks him what the matter is and man replies that the soil is too swampy for the cultivation of the yams which God has directed him to grow. God tells him to bring in a blacksmith to dry the soil with his bellows. The contribution of humanity to this creation is so important. God could have made the world perfect if he had wanted. But he made it the way it is. So that there is a constant need for us to discuss and cooperate to make it more habitable, so the soil can yield, you see.