Positive and negative emotions cannot occupy the mind at the same time. One or the other must dominate. It is your responsibility to make sure that positive emotions constitute the dominating influence of your mind. Here the law of HABIT will come to your aid. Form the habit of applying and using the positive emotions! Eventually, they will dominate your mind so completely, that the negatives cannot enter it.
Napoleon HillI understand the law through the operation of which my own character is developed from my own acts and thoughts; therefore, I will guard with care all that goes into its development.
Napoleon Hill