The happiness of your life depends upon the quality of your thoughts.
Very little is needed to make a happy life.
The things you think about determine the quality of your mind. Your soul takes on the color of your thoughts.
Unhappy am I because this has happened to me. Not so, but happy am I, though this has happened to me, because I continue free from pain, neither crushed by the present nor fearing the future.
Man is not worried by real problems so much as by his imagined anxieties about real problems.
So remember this principle when something threatens to cause you pain: the thing itself was no misfortune at all; to endure it and prevail is great good fortune.
People with a strong physical constitution can tolerate extremes of hot and cold; people of strong mental health can handle anger, grief, joy and the other emotions.