The Secret of The Ages (Book)

so I consider it Collier's magnum opus.. But there are other books published
by Robert Collier include "The God in You", "The Secret Power", and "The Magic Word".

Collier was born in St. Louis, Missouri on April 19, 1885. He was the nephew of Peter Fenelon Collier, founder of Collier's Weekly. He was involved in writing, editing, and research for most of his life. His book, The Secret of the Ages, sold over 300,000 copies during his life. Collier wrote about the practical psychology of abundance, desire, faith, visualization, confident action, and becoming your best.
Robert Collier Publications, Inc., still exists through the efforts of his widow and now his children and grandchildren and now even his great grandchildren. Collier's Books have recently been brought back to prominence from being referenced in the popular metaphysical movie The Secret. Moreover, Robert Collier's books have been popular with self help and New thought.
After overcoming an illness he became fascinated with the power of the mind and how to use it to create success in every area.

"No one can follow it down through the ages without realizing that the whole purpose of existence is GROWTH."

"Life is dynamic-not static. It is ever moving forward-not standing still. The one unpardonable sin of nature is to stand still, to stagnate."

"Your future is of your own making. For the only law of infinite energy is the law of supply. The "Life Principle" is your principle."

"All through your daily life you will find this "Life Principle" steadily at work. Embrace it, work with it, take it to yourself, and there is nothing you cannot do."

"But let things start going wrong, let ruin and disgrace stare you in the face- then is the time this "Life Principle" will assert itself if you but give it a chance."

"There is nothing on earth you want that you cannot have -- if only you will mentally accept the fact that you can have it! There is nothing you cannot do -- once your mind has accepted the fact that you can do it."

"The first principle of success is desire -- knowing what you want. Desire is the planting of your seed."

"Just so it is with the greatest Genii of them all-the subconscious mind within you.
Through this spirit within, you can do anything right you may wish. "