once a professor asked a student , has god mad every thing that exist?
student yes .
then the professor asked what about evil?has god made also evil?
student remained silent for awhile , then the student asked may i ask you a question sir...
professor said yes .student asked does cold exists
professor yes dont you feel the cold
student you are wrong sir we define cold as the complete absence of heat ,actually there is no cold , in the complete absence of heat we feel cold .
student asked again does darkness exists
you are again wrong sir there is nothing like darkness actually it is the complete absence of light .according to physics we can study heat and light but not darkness and cold .similarly sir evil does not exists
it is the complete absence of faith true love in god .