[...]

Real knowledge is to know the extent of one’s ignorance.

    [...]

If you can start the day without caffeine,

If you can always be cheerful, ignoring aches and pains,

If you can resist complaining and boring people with your troubles,

If you can eat the same food every day and be grateful for it,

If you can understand when your loved ones are too busy to give you any time,

If you [...]