Looking at the bird flying high in the sky, I felt freedom.

He has a proud patriotism for his country.

Because he is haughty, it's difficult for him to get along with people.

He is proud of his son's success.

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

Radioactive elements are produced in nature and scientific experiments.

He believes in the geocentric theory.

Global warming is a big issue that affects all of us.

A terrestrial planet may have an environment similar to Earth.

He is an expert in geophysics.