"Fortify yourself with contentment, for this is an impregnable fortress."

"When you have decided that you are going to take a bath, be careful how you act, and don't make a scene."

"If a man is unhappy, this must be due to his own fault, that he does not understand that it is in his power to be happy."

"To a reasonable creature, that alone is insupportable which is unreasonable; but everything reasonable may be supported."

"You will never do anything in this life worth remembering unless you give up the hope of being remembered."