Do not compare one person to another.

Everyone is different—a combination

 of karmic causes and consequences.

Throughout our past lives, we have planted incalculable seeds, some of which have matured in this lifetime. Far more have not. For example, when you gave fearlessness, you planted the seeds for a healthy, long life. But what if those seeds have not yet matured? It is very likely you will be undergoing health problems, maybe even severe enough to affect your lifespan. And so, you suffer. Now, imagine I come along and, observing your problems, compare you to a healthy person we both know. Not only will I have not minded my own business, I will have thoughtlessly spoken out when I had no right to and increased your suffering. Not to mention failed utterly to give fearlessness. There goes my future good health! So, instead of comparing one person to another, celebrate the past deeds of the fortunate one and encourage the other to plant more such seeds for a better future.