"If a man empties his purse into his head, no man can take it away from him. An investment in knowledge always pays the best interest."
Franklin's quote is a crucially important aspect of self-development and personal improvement. When you are faced with the question of how much a book is, how much a seminar costs, or the time you'll have to spend, just ask yourself what is it really worth? In closing and on a very related and wise note, Jim Rohn also said at times that there simply is no alternative to "reading the books." So please, for your good fortune, do not confuse cost with value!