The habit of being happy enables one to be freed, or largely freed, from the domination of outward conditions.
Robert Louis StevensonJew storekeepers have already learned the advantage to be gained from this [unlimited credit]: they lead on the farmer into irretrievable indebtedness, and keep him ever after as their bondslave hopelessly grinding in the mill.
Robert Louis StevensonQuiet minds cannot be perplexed or frightened but go on in fortune or misfortune at their own private pace, like a clock during a thunderstorm.
Robert Louis Stevenson