He is an expert in paleoanthropology, conducting research on the origins of mankind.

The government declared a state of emergency to prevent the spread of the new coronavirus.

He understands the meaning of the proverb 'Teaching is half learning', which means that teaching leads to one's own learning.

By regularly checking the key performance indicators, you can understand the performance of the company and devise improvement measures.

He always keeps in mind the phrase 'If one learns without thinking, it is a waste.'

In order to solve problems, it is important to listen to the opinions of many people, as the saying goes, 'two heads are better than one'.