Limits of survival are set by climate, those long drifts of change which a generation may fail to notice. And it is the extremes of climate which set the pattern. Lonely, finite humans may observe climatic provinces, fluctuations of annual weather and,┬аoccasionally┬аmay observe such things as 'This is a colder year than I've ever known.' Such things are sensible. But humans are seldom alerted to the shifting average through a great span of years. And it is precisely in this alerting that humans learn how to survive on any planet. They must learn climate.
from Children of Dune┬аby Frank Herbert┬а
















