Anger is a symptom, a way of cloaking and expressing feelings too awful to experience directly - hurt, bitterness, grief and, most of all, fear.
"Reader's Digest Quotable Quotes" by Readers Digest, (p. 87), 1997.

Anger is a symptom, a way of cloaking and expressing feelings too awful to experience directly - hurt, bitterness, grief and, most of all, fear.