These are just empty expressions, and said by people with a very superficial understanding of life.

"Love is better than anger. Hope is better than fear. Optimism is better than despair. So let us be loving, hopeful and optimistic. And we’ll change the world." These words and phrases are simply defining the options open to every man. The idea is that we all have the opportunity to choose the best options. Choosing the best options is just mind control... and, yes... it can change the world! People who choose wrong options, choose to believe that everything will always be bad and, as a result of this poor thinking, they will never be a part of a change for good. Nobody chooses the best options every time, but the degree to which you work at choosing the positive options will determine how much you enjoy life! (and it is WORK... lazy people will always be negative!) It has been scientifically proven that optimists live longer.

Ah. Such an optimistic outlook on life. Sadly, life does not work that way. People who hold views like that will be crushed under the foot on the cruelties of real life.

i agree with mr.eliot.

If there is no anger in our life， love is strengthless。I want to have love，hope and optimism，without lack of anger ，fear and disappear。