Success or failure depends ...

Success or failure depends more upon attitude than upon capacity successful men act as though they have accomplished or are enjoying something. Soon it becomes a reality. Act, look, feel successful, conduct yourself accordingly, and you will be amazed at the positive results.
Success or failure depends more upon attitude than upon capacity successful men act as though they have accomplished or are enjoying something. Soon it becomes a reality. Act, look, feel successful, conduct yourself accordingly, and you will be amazed at the positive results.

Quotes from the same author

Most people never run far enough on their first wind to find out they've got a second.
To change one's life, start immediately, do it flamboyantly, no exceptions.
The greatest discovery of our generation is that human beings can alter their lives by altering their attitudes of mind. As you think, so shall you be.
The deepest craving of human nature is the need to be appreciated.
Pretend what we may, the whole man within us is at work when we form our philosophical opinions.