Question

he has no common sense

Answer 1

اون عقل / درك و شعور نداره.

Common sense: عقل (سليم)، درك و شعور، قوه تميز

:  sound and prudent judgment based on a simple perception of the situation or facts

1. -You really should go to see a doctor if your leg hurts that much. It's just common sense!
2. -Obey the laws and use common sense when operating your boat.
3. -She's very smart but she doesn't have a lot of common sense.

Answer 2

در context های فلسفه و الهیات , معنی جهان بینی (هر شخص یا فرد) را نیز می دهد.