Tomorrow may be a happy day, or some trouble may appear. If you do believe this, it will make you strong and courageous and better prepared to meet whatever fortune the morrow may bring. While if you believe in some gloomy outcome, it will make you weak and nervous and unprepared. We must remember that optimism is not a question that can be argued by facts. That is, no one can prove that things are going to turn out well, nor that they are going to turn out badly.
Optimism is merely a state of mind.
It is a point of view. It is a temper of the spirit. And if we take this constant attitude of hope, and bright courage, it is going to make the world a better place to live in, and it is going to make us a better kind of people to live in it. Optimism is a duty. The Bible says, Rejoice, and again I say unto you, rejoice.