When I am unhappy or dissatisfied, I recall what Virgil wrote, "Perhaps some day it will be pleasant to remember even this." It gives pause, doesn't it? Whenever you're restless or miserable, if you can imagine that at some point you may look back on that moment fondly, it may make the present more bearable. Even what appears to be a terrible problem may in the future turn out to be a positive change. You just never know.
-- Gloria Vanderbilt, The Rainbow Comes and Goes, p. 184