innate knowledge and sense of right and wrong
It refers to the first idea and instinct of human talent.
The origin of Idioms
"Mencius: wholeheartedly:" the person who is able without learning, his good ability; the person who knows without thinking, his conscience. "
Idiom usage
As an object, it refers to people's ideas and instincts.
Examples
Mencius spoke of benevolence and righteousness, as well as conscience and ability. (reading Mencius II by Yun Jing in Qing Dynasty)
innate knowledge and sense of right and wrong
a crab in boiling water—be at a loss - luò tāng páng xiè