Hope deferred makes the heart sick, but a desire fulfilled is a tree of life.
In context
10Pride breeds nothing but strife, but wisdom is with those who take advice. 11Wealth won in a breath dwindles, but whoever gathers little by little makes it grow. 12Hope deferred makes the heart sick, but a desire fulfilled is a tree of life. 13Whoever despises a word will pay for it, but whoever respects a commandment will be rewarded. 14The teaching of the wise is a fountain of life, turning one away from the snares of death.
