He studied the mystical arts of a holy sage and dedicated his life to helping people.

Spectroscopy is an important means of investigating the properties of matter.

He measured the wavelength of light using interferometry.

This law is a sieve law, full of loopholes.

He emphasized his belief by saying, 'I believe in order to understand.'

She described the pain of a broken heart as tears.

I don't know a thing about him.

The philosophy of Mohism, one of the thoughts of ancient China, advocated universal love and fairness.

He fulfilled his responsibilities as a government official.

We must absolutely obey the orders of the emperor.