Some sentences I've highlighted:

"I am credited with being one of the hardest workers and perhaps I am, if thought is the equivalent of labor, for I have devoted to it almost all of my waking hours."

"Our first endeavors are purely instinctive, promptings of an imagination vivid and undisciplined...but those early impulses, tho not immediately productive, are of the greatest moment and may shape our very destinies."

"When I get an idea I start at once building it up in my imagination".

"But instinct is something which transcends knowledge. We have, undoubtedly, certain finer fibers that enable us to perceive truths when logical deduction, or any other willful effort of the brain, is futile."