Some help others in order to receive blessings and admiration. This is simply meaningless. Some cultivate themselves in part to serve others, in part to serve their own pride. They will understand, at best, half of the truth. But those who improve themselves for the sake of the world - to these, the whole truth of the universe will be revealed.
People in their handlings of affairs often fail when they are about to succeed. If one remains as careful at the end as he was at the beginning, there will be no failure.