You are not a Christian if you are not an optimist
I could not call myself a Christian if I was not an optimist, and if I will call myself a Christian and I was not an optimist, then I will not be a true and honest Christian. Christianity is the major castle of optimism. Christianity is based on faith, hope and love, and only these three lead you to Paradise.
Saint Nikolaj Velimirović
Translated by Dr. Nick Stergiou