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.
When the highest type of people hear Tao (Truth), they diligently practice it. When the average type of people hear Tao, they half believe in it. When the lowest type of people hear Tao, they laugh at it. If they did not laugh, it would not be Tao.
He that humbles himself shall be preserved entire. He that bends shall be made straight. He that is empty shall be filled. He that is worn out shall be renewed. He who has little shall succeed. He who has much shall go astray.
In the highest antiquity, the people did not know that there were rulers. In the next age they loved them and praised them. In the next they feared them; in the next they despised them.