His new song is composed in E flat major.

Variational method is a branch of mathematics used to find the minimum and maximum values of functions.

Verbs of the 'ra-row irregular conjugation' are a special existence in Japanese.

We should always remember the power of Kannon in difficult times.

This ancient proverb, 'know the other side and yourself, and you will not be in danger in a hundred battles', teaches us the importance of understanding ourselves and others.