Instagram photo by inkandvoltCompassion for others cannot be overrated.
In psychology, there is a principle called the fundamental attribution error, which refers to the tendency to interpret your own behavior based on external factors (e.g. "I may have just cut that guy off, but I had to merge lanes!"), and to attribute internal factors to others' behavior (e.g. "Wow, that guy was a huge jerk for cutting me off."). We are more likely to question the character or motivations of someone else, despite understanding that environmental circumstances may dictate our own behavior.
We all commit this error to some extent. I challenge you to exercise compassion next time you want to get angry with someone else. Why might they be behaving in such a way? What would you want from someone else if you were in their shoes?