"Hope isn't optimism.

Optimism often denies reality;
Hope never does.

Optimism is positive thinking;
Hope is passionate trust.

Optimism is psychological;
Hope is theological.

Optimism focuses on what you think you can do;
Hope trusts in what you know God can do.

Optimism says 'it's not so bad.'
Hope admits that it is, 'but I still believe and trust God.'

We all struggle with difficulty, doubt, discouragement and despair.

That's why we need hope."

-Rick Warren (edited from a string of tweets.)