He has a deep interest in empirical science.

He always tries to act ethically.

Animal experiments are necessary for the advancement of science, but there are also ethical issues.

He is learning about the handling of experimental animals.

He solved the problem in a scientific way.

This is our new experimental project.

His progress in Japanese is astonishing.

We are witnessing the progress of science and technology.

Ethics are deeply involved in our daily lives.

Your cooperation is needed for this project.