1796  “People are just as happy as they make up their minds to be.”
687  To succeed in your mission, you must have single-minded devotion to your goal.
601  The greater danger for most men lies not in setting our aim too high and falling short, but in setting our aim too low and achieving our mark.
574  Self-conceit may lead to self-destruction.
504  The smaller the mind the greater the conceit.