Boys don't cry?

"Boys don't cry" it is popular proverb, song and film. I am sure that everyone came across this sentence.
Is it truth? I am not sure...I think that men seldom cry, but it doesn't change fact that they cry. I saw boy who burst into tears once, and he was distraught...It was very moving view...Man's tears are pretty, because it is unusual phenomenon. Men apparently are stronger gender. But when thay cry we know that they not always are so strong and powerful. They also have feelings...
Dear Boys - don't pretend that we always are tough boys. We know that we can be sensitive.