Let not your mind run on what you lack as much as on what you have already. Marcus Aurelius
Remember happiness doesn't depend upon who you are or what you have; it depends solely on what you think. Dale Carnegie
Both angels and demons are ignorant of the future, yet they make predictions. The angels do so when God reveals the future to them and commands them to prophesy, and what they prophesy comes to pass. Demons also make predictions, but these are only guesses based on what they see from afar. John of Damascus
The rabbit gets fat on what the hare misses. Irish Proverb
Think not on what you lack as much as on what you have. Greek Proverb
The harvest of a whole year depends on what you sow in the springtime. Chinese Proverb