Orison Swett Marden 
The Victorious Attitude [EPUB ebook] 

In The Victorious Attitude Marden explains that we need a good attitude to be successful in any endeavor. Controlling our mind and our thoughts is the key to success. We must remember that we all have to undergo challenges and obstacles on our path. The difference between emerging victorious and strong, or defeated and weak, is in our attitudes, which determine how we deal with them.