He was looking proud when he heard that his son had been accepted to college.

He is proud of his son's success.

He understands the importance of learning.

He is majoring in psychology.

Gaku is my best friend.

He has a deep interest in archaeology.

He likes to take a walk in the park at dusk.

He is spending a lot of time on experimental research.

He is a person of strong vanity who reads self-improvement books.

He thoroughly researched the history of that nation.