What rules of life help to work successfully?

The following rules help to work:
1) It is necessary to separate personal and business relationships;
2) Perseverance helps to achieve what you want;
3) Today you do not know how, and later you will learn;
4) There must be a distance between the leader and the subordinate;
5) It is better to learn to admit your mistakes;
6) Always set tasks and deadlines for their implementation.
The above rules can work if you’ve chosen a job that you enjoy. You have the skills and the desire to work hard.