You have to be positive every single day. You have to put effort into it daily, because no one else is going to do it for you.Donald J. TrumpIt came from here.Here's another excerpt...
Optimism can be learned, and it can make a huge difference in life. No matter how large and intimidating a challenge might be, facing it with optimism is the thing you can do to manage, shape and eventually triumph over it.The bottom line: Trash the pessimistic attitude.