1655  Man needs his difficulties because they are necessary to enjoy success,

2046  There is nothing that wastes the body like worry, and the one who has any faith in GOD should be ashamed to worry about anything.....

2076  You must not lose the faith in Humanity. Humanity is an ocean, if the few drops of ocean are dirty, the ocean does not become dirty....

3009  “People are just as happy as they make up their minds to be.”

697  To succeed in your mission, you must have single-minded devotion to your goal.