If the problem can be solved why worry? If the problem cannot be solved worrying will do you no good.
Instead of trying to cover the whole world with leather, put on some sandals.
Penetrative insight joined with calm abiding utterly eradicates afflicted states.
The source of all happiness lies in thinking of others.
What need is there to say more? The childish work for their own benefit, The Buddhas work for the benefit of others. Just look at the difference between them.
There is no evil like hatred, and no fortitude like patience.