A couple of quotes from this article about reasonable hope by Kaethe Weingarten, PhD:
“Reasonable hope is a humble hope. It allows reasonable goals to trump ideal ones. It
is satisfied to do less than everything that needs to be done in order to ensure that
something be done.”
“Hope has a connotation of purity, whereas reasonable hope accepts that life can be
messy. It embraces contradiction. Public life is rife with contradictions as is family
life. Reasonable hope is easier to sustain since it does not get dashed, as innocent hope
may, if contradictions emerge.”