The quote "the same thing that makes you laugh, makes you cry" has no comprehensible application to the situation.
Pretty sure he's saying that everyone was laughing when the LOB Rule was going to be strictly enforced, and now everyone is getting burned on it except the Hawks, which Seattle finds funny. But yeah, terrible phrasing.
"I believe it is the duty of each of us to act as if the fate of the world depended on him. Admittedly, one man by himself cannot do the job. However, one man can make a difference."