He is known as a person with learning.

Geomorphology is the science that studies the surface shape of the earth.

He is majoring in geology.

In geology, morphology is the field that studies the shape and structure of the terrain.

He understands the importance of learning.

He is majoring in psychology.

Gaku is my best friend.

He has a deep interest in archaeology.

He is working in the field of science.

The shape of this object is very unique.