Translation please :)

Please can you help me with the enlgish translation of this and the meaning. Thanx.
حين يتلفظ عليك شخص بكلآم لا يلييق بك .. فلآ تغضب ..
بل إبتسسم .. لآنه وفر علييك أگتشآف شخصيته

the translation is:
when someone says bad things about u, don't be angry
just smile, because he/she saved u the time trying to know more about him/her

the meaning is that when someone says bad things about u, don't get angry, smile, because this person (when said bad things about u) showed that he/she isn't a good person and therefore u'll know that u have to avoid this person instead of making friends with him/her and trying to know more about him/her

Thanks I really appreciate is mvnr1!