Only a few had livable worlds with no second-level forms in the oceans, and almost all of those were already inhabited.

And humanity will use its shiny new science to turn that burning hell back into a livable green world.

Lang and his experimenters were struggling to transform Venus into a livable world.

I imagine you'll be interested in this: we found a perfectly lovely and livable world in the Procyon system.

But the regs called for life specimens to be brought back from all livable worlds whenever possible, whenever there was no 'slight manifestation of danger'.

I promise to do my share in keeping our Earth a clean, healthy and livable world.

Turning corporations loose and letting the profit motive run amok is not a prescription for a more livable world".

But the fact was that Being-in-the-world was possible; consciousness could construct a livable, relatively coherent world to live in.

If any of those have got livable worlds, maybe we've found Raoul's Paradise.

You see, the rest of our people don't know that we've found livable worlds here.