It means: handle difficult things responsibly and forcefully, without complaining. You should know what you are talking about when you are with difficult people. This sentence comes from the proverb Lian Bi, and the original text is as follows:

In a narrow path, keep a step away from pedestrians.

Strong flavor, negative three points make people taste.

Anything that is difficult to do should be powerful and lifeless.

People in trouble should know it without saying.

Translation:

Where the road is narrow, leave room for others to pass. It's delicious. Save some for others to taste. Responsible for dealing with difficult things effectively without complaining. You should know what you are talking about when you are with difficult people.

Extended data:

The book "Combinatorial Motto" focuses on Confucian universities and the golden mean, and focuses on honesty, honesty, morality, knowledge, self-cultivation, keeping the family in order, governing the country and leveling the world. According to people's reading habits at that time, they were divided into eight categories.

The author's original intention is to take the golden rule as a wake-up call, that is, to spur and enlighten children with the wise aphorisms of sages and sages, to understand the truth of being a man from an early age, to set up lofty aspirations in life, to strive for progress, and to become useful people to the country and family when they grow up. The book's incisive reasoning, accurate events, precise wording and concise articles are all ancient and modern.