From the saying "A coward dies a thousand times before his death. The valiant never taste of death but once", - by William Shakespeare in "Julius Caesar", one might infer that
both coward and valiant die.
a coward constantly and fearfully imagines his own death.
the valiant give no thought to how they might be harmed.
brave people never die.
cowards live less than the valiant.
the valiant live longer than cowards.