Answer:
1. "It's never an insult to be called...."
Labelling others affects you, too.
2. "You never really understand..."
Sympathy for others is important.
3. "The one thing that doesn't abide..."
Do what you think is right, not what popular opinion says is right.
Step-by-step explanation:
The first quote means that when you insult someone, it defines you, not the person. The second quote says that you can't expect someone's way of thinking to be like yours if you do not go through their difficulties. The last one says that isn't followed by most of the people is their own morals and beliefs. They tend to follow what they see as 'norms'.