HELPING OTHERS, 助人为快乐之本?

Years back, all because of trying to help a " friend ", landed myself in deeeep shit. .and had to spend many years paying debt. Heard this phrase in a chinese drama serial this morning.. How true !   wished I had understood this long ago

 亲身体验, 有感而言。。所以到现在还在做牛做马。。。  
只因为当年没明白这个道理。