Aristotle said "The hardest victory is the victory over self," but it is a victory that enables you to win in all aspects of life. In The Path to Prosperity, James Allen underscores this concept, noting that a disciplined mind and a focus on serving others are basic to the achievement of any prosperity. Thus, prosperity is always personal, resting squarely on the degree to which you have refined and bettered yourself. In a nutshell, you'll only become truly prosperous when you have disciplined your mind. paradoxically, wealth (and happiness) comes most easily to those who forget themselves in the service to others.
Quotes:
"Rectify your heart, and you will rectify your life. Lust hatred, anger, vanity, pride, covetousness, self-indulgence, self-seeking, obstinacy - all these are poverty and weakness; whereas love, purity, gentleness, meekness, compassion, generosity, self-forgetfulness, and self-renunciation - all these are wealth and power."
"Whatever your position in life may be, before you can hope to enter into any measure of success, usefulness, and power, you must learn how to focus your thought-forces by cultivating calmness and repose."
"You say you are chained by circumstances; you cry out for better opportunities, for a wider scope, for improved physical conditions, and perhaps you inwardly curse the fate that binds you hand and foot. It is for you that I write; it is to you that I speak... I know this pathway looks barren at its commencement... but if you undertake to walk it... you will be astonished at the magical changes which will be brought about in your outward life."