The person with a fixed goal, ...

The person with a fixed goal, a clear picture of his desire, or an ideal always before him, causes it, through repetition, to be buried deeply in his subconscious mind and is thus enabled, thanks to its generative and sustaining power, to realize his goal in a minimum of time and with a minimum of physical effort. Just pursue the thought unceasingly. Step by step you will achieve realization, for all your faculties and powers become directed to that end
 Claude M. Bristol

Quotes from the same author

Thought is the original source of all wealth, all success, all material gain, all great discoveries and inventions, and of all achievement.
 Claude M. Bristol