人心険惡

The term '人心険惡' is pronounced 'rén xīn xiǎn è' in Chinese, it combines characters to express a profound concept. The literal meaning of each character is: '人' (rén) means human or people; '心' (xīn) means heart or mind; '険' (xiǎn), though this character is more commonly written as '险' in simplified Chinese and implies danger or peril; '悪' (è) written usually as '恶' represents evil or bad. Thus the phrase generally conveys the concept of human hearts/minds harboring treachery, suggesting a belief that there are dangers or negative aspects in people's true intentions, warning of the potential deceit and harm in human interactions.