Decide...whether or not the goal is worth the risks involved. If it is, stop worrying.
Human crises have a way of happening at inconvenient times.
You haven't seen a tree until you've seen its shadow from the sky.
There is so much that must be done in a civilized barbarism like war.
Ours is the commencement of a flying age, and I am happy to have popped into existence at a period so interesting.
Obviously I faced the possibility of not returning when first I considered going. Once faced and settled there really wasn't any good reason to refer to it.