He explained the importance of studying while young, saying 'If you do not study when you are young, it will be difficult to learn when you are old.'

We adjusted our travel schedule according to Mountain Standard Time.

I used an optical microscope for an experiment at school.

Humanities is an academic field that studies human culture and society.

He is world-famous as a comparative linguist.

Listening to music is really enjoyable.

His army had a great array of spears and chariots like '輵'.

UNESCO is an international organization that promotes the development of education, science, and culture around the world.