Have Courage. Be Happy.

Sadness and anger are very closely related.
Anger usually causes sadness, and sadness can often cause anger.
That's why when something bad happens, you can either be sad first, or angry first, but you usually end up as both.

And that's also why it takes real strength, and real courage, to feel neither sadness or anger when something hard comes your way. To feel happy in the face of difficulty takes twice as much effort, but it also proves twice as worth it after the storm has passed. :) Truly, Happiness is a form of courage.