我決定在每個情境中保持愉悅與快樂，因為我已學到，我們大部份的不快樂及不幸都不是取決於環境，而是我們的人格特質。I am determined to be cheerful and happy in whatever situation I may find myself. For I have learned that the greater part of our misery or unhappiness is determined not by our circumstance but by our disposition.

I am determined to be cheerful and happy in whatever situation I may find myself. For I have learned that the greater part of our misery or unhappiness is determined not by our circumstance but by our disposition.
 – Martha Washington, First Lady of the United States
我決定在每個情境中保持愉悅與快樂，因為我已學到，我們大部份的不快樂及不幸都不是取決於環境，而是我們的人格特質。
– 馬莎‧華盛頓 (1731-1802) 美國首任總統喬治‧華盛頓的妻子。