I'll miss his father-like guidance, his friendship and his yelling, because he didn't yell often but when he did, he sounded like Kermit the Frog. I'll miss his smile because he smiled with his whole face. You knew everything was going to be all right.
The tone at the top does matter. Friendship is important. It makes a huge difference.
Love is rarer than genius itself. And friendship is rarer than love.