The outer world of circumstances shapes itself to the inner world of thought, and both pleasant and unpleasant external conditions are factors which make for the ultimate good of the individual. As the reaper of his own harvest, man learns both by suffering and bliss. ~ James Allen.
The happiness which brings enduring worth to life is not 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 root deeply inside us and give inward relaxation, peace and contentment, no matter what the surface problems may be. That kind of happiness stands in need of no outward stimulus.
~ Billy Graham.