How to Win Friends and Influence People Quote

Criticism is dangerous because it wounds a person’s pride, hurts his sense of importance, and arouses resentment - Dale Carnegie
At its core, this quote means that criticism is a direct attack on a person's ego and sense of self-worth, and the natural human response to that attack is a defensive, resentful backlash.
Criticism is futile because it puts a person Meaning Factcheck Usage

How to Win Friends and Influence People Quote

Criticism is futile because it puts a person on the defensive and usually makes him strive to justify himself - Dale Carnegie
The core message is brutally simple: criticism, as a tool for change, is fundamentally broken. It triggers a primal defensive reaction that makes people dig in their heels, not open their minds.