He risked his life to carry out his duty and inspired police officers everywhere.

It is important to combine theory with practice.

A theory must be followed by practice.

Theory and practice do not necessarily go together.

Theory and practice do not always go together.

Theory and practice do not necessarily go together.

From a practical point of view, his plan is not easy to carry out.

From the practical point of view, there are many shortcomings in his plan.

Communism is the system practiced in the Soviet Union.

When you get married and have kids, you'll realize that actions speak louder than words.

Effective use of disinfectant is an important subject in relation to infection control in hospitals.

It's publicly recommended to "raise obedient kids," but it's rather difficult to carry that out.

Actions speak louder than words.