Few things in the world are more powerful than a positive push. A smile. A world of optimism and hope. A 'you can do it' when things are tough.
Optimism is the faith that leads to achievement. Nothing can be done without hope and confidence.
A pessimist sees the difficulty in every opportunity; an optimist sees the opportunity in every difficulty.
For myself, I am an optimist — it does not seem to be much use being anything else.
A pessimist is a man who thinks all women are bad. An optimist is a man who hopes they are.