“Happiness is a quality of the soul...not a function of one's material circumstances.”

“The happiness which brings enduring worth to life is not the superficial happiness that is dependent on circumstances. It is the happiness and contentment that fills the soul even in the midst of the most distressing circumstances and the most bitter environment. It is the kind of happiness that grins when things go wrong and smiles through the tears. The happiness for which our souls ache is one undisturbed by success or failure, one which will deeply root inside us and give us inward relaxation, peace, and contentment, no matter what the surface problems may be. That kind of happiness stands in need of no outward stimulas.”

“Happiness is not a feeling, it is a choice. To be happy, one must choose to be happy, not respond to a circumstance that now controls your happiness.”

“The businessmen have corrupted liberty by trying to propose it as a material quality.”

“Greatness is not a function of circumstance. Greatness, it turns out, is largely a matter of conscious choice, and discipline.”

“Optimism is the one quality more associated with success and happiness than any other. ”