Life is not a straight line. The sooner you realize this, the happier you become.
Nothing is permanent. Money isn't permanent. Your dog isn't permanent, and you're certainly not permanent. Even truth evolves.
You were designed to adapt to change so as to allow evolution to occur with little or no resistance.
Adapt to nature, and live longer.
Argument yields no fruit even if you win.
Even the perfect answer doesn't solve the world's problems.
Death is certain, regardless of how we feel about it or how we try to resist it.
No one is perfect, therefore everything created by human is not perfect.
There are certain things we can't explain, and there are certain things that need no explanation.
Life is constantly fighting you because you're subconsciously fighting life and have never found the perfect harmony with the universe.
You cannot maintain perfection using only a single digit, just as you cannot maintain equilibrium using only one eye, or one arm, or one leg.
Each time you try to convince yourself that God doesn't exist, you are fighting a losing battle against your subconscious and denying yourself perfect peace.