There is nothing more dreadful than the habit of doubt. Doubt separates people. It is a poison that disintegrates friendships and breaks up pleasant relations. It is a thorn that irritates and hurts; it is a sword that kills.
Everyone has their weak spot. The one thing that, despite your best efforts, will always bring you to your knees, regardless of how strong you are otherwise.
There were two ways to be happy: improve your reality, or lower your expectations.