it is a poor heart that never rejoices
Even someone who tends to feel sad can find great joy, amusement, or delight in or about something. I'm sure this vacation will perk him up. It is a poor heart that never rejoices, after all.
It is a poor heart that never rejoices.
and It is a sad heart that never rejoices.Prov. Even a habitually sad person cannot be sad all the time. (Sometimes used to indicate that a habitually sad person is happy about something.) Jill: I've never seen Sam smile before, but today, at his retirement party, he smiled. Jane: It is a poor heart that never rejoices.