He felt cognitive dissonance between his actions and beliefs.

Japan's exclusive economic zone plays a crucial role in the management and utilization of marine resources.

He believes that he has extrasensory perception.

In behavioral sciences, the use of metatools plays a crucial role.

He is writing a thesis on dialectical materialism.

It is important to distance yourself from antisocial forces.

Please remember this old proverb, 'The friendship of a gentleman is insipid as water.'