do you know a phrase, "if you brave enough to say good bye, then a good welcome will come"?

its hard to say goodbye specially to someone who close with

yeah it was hard to say goodbye to one of our best friend

he is from korea and due to korean regulation, he must attend army for two years and leave absent 

it was our farewell for him, the korean guy on our photography club 

be nice in army and see you again in the future