Seeing through the truth of human nature: powerful male animals can freely mate with female counterparts, while the weak males nearby can only watch. When a dog barks at the village entrance, other dogs will bark along, but they do not know why. If you break a leg and then give you a crutch, and finally tell you that without me, you couldn't even walk, you will be filled with gratitude. Human nature is such that when it comes to money and power, the pupils immediately dilate; when it comes to matters between men and women, they become excited; but when it comes to morals and conscience, they all become silent, spouting lies. Relationships that seem unbreakable crumble under immense interests; those who stab you in the back are often your own kind, and those who laugh at you are usually those close to you. Those who engage in political maneuvering share a common trait: they can handle nonsense with great professionalism, yet are quite nonsensical when it comes to professional matters; they can be very proactive in profitable ventures, and can execute shameless acts flawlessly. People with a heavy sense of servitude are often extremely cruel to their own kind, for they have lost their dignity to the masters and need compensation from their peers; thus, they are submissive to those above them and domineering to those below them. One day, if you find that people around you have become polite, it is not because they have become kind or their qualities have improved, but because your strength has increased. All your suffering stems from your ignorance of human nature's maturity. It is not that you have understood something or clarified a problem, but that you have seen through human nature behind it.