The first sentence is that you can't rely on others and don't ask for help. The second sentence is that it is not good for you to have a villain in the dark. The third sentence is not to take immediate interests easily. The fourth sentence is that the villain will make you unable to solve it. The last two sentences mean that it is better to be cautious in expressing your thoughts and opinions in front of outsiders these days, and many villains should be flexible in interpersonal relationships.