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

He is doing squats to train his biceps femoris muscle.

He is attending school to obtain a motorcycle license.

Following the teachings of Buddhism, I am aiming for the eternal paradise.

He is the type of person who understands ten from hearing one.

I saw a cackling goose in the park.

The 正六百胞體 is one of the regular polytopes in four dimensions.

The 600-cell is one of the regular polytopes in four dimensions.

This mutetrahedron has a very unusual shape.

World War II lasted from 1939 to 1945.