In order to lead a successful life, it is important for man to learn the art of Life Management. The art of life management means, on the one hand man understanding himself, (i.e. he should know who he is, what his capabilities are) and, on the other hand, his becoming aware of the world around him. Then he may plan his life in a realistic manner, and make improvements whenever and wherever required.
The only criterion by which to judge whether one had planned one’s life well or not is to see the result. A plan which yields a negative result is not right, and a plan which yields a positive result is right. Examining an action by an ideal standard is not a wise thing. Wisdom lies in examining things in the light of the result.
The relationship between a husband and wife is a delicate matter, because they are not related by blood. Therefore, the only way to make this relationship successful is to use reason, rather than allow emotions to take precedence. In a blood relationship, there is an emotional bonding. But even then, one has to make a conscious effort. The force of nature, existing in blood relationships, does not exist between a husband and wife, which is why it is difficult to manage this relationship successfully without rational management. In short, a blood relationship establishes itself by the force of nature, while a non-blood relationship is established through conscious effort and rational management.
Source: The Secret Of a Successful Life