In natural affection, as far as possible, do not mix your own interests.Above all, free from feelings of vanity, competition, and boasting, which compel us to compare ourselves with others.For such comparisons necessarily lead us to harbor hatred for those who have gone before us simply because we feel we ought to get ahead of them.In this way, we either become blind, or become angry, and become fools if we are not villains.You might say that no matter what we do, this feeling will come sooner or later.Yeah, I'm not denying that, but there's a right time and a right place for everything, I'm just saying we don't have to accelerate these emotions.