释义：物质炫耀的本质是精神空洞的呼救。
Have a heart that never hardens, and a temper that never tires, and a touch that never hurts.
The challenge in computational learning theory is to understand the capabilities and limitations of learning algorithms.
原句出自黄巢《不第后赋菊》，辰一十一在作品中引用
"The truth is rarely pure and never simple."
