4 key elements of greatness of Men, fundamental humbleness, freedom of self, intrepid courage, truth without judgement, and love without fear.
Friendship is not diminished by distance or time, by imprisonment or war, ... "Don't worry about tomorrow, don't think about yesterday, don't live in the future, just ... "Life is worth all those ups and downs with friends to share them with you!" ..... you can feel there is understanding in spite of distances or thoughts expressed.