Mind your own business but observe what they are doing

[Fragrance1122]

Stay out of other people’s matters, but don’t be blind to what’s going on around you. 
Don’t compare yourself with others, because it only makes you desperate and ungrateful for what you have.But stay aware of what other people are doing.

Example:At the workplace, if two coworkers are arguing, don’t take sides or jump in. 
Just observe why it happened, so you don’t make the same mistake.

That’s the mindset of smart and successful people.

[Charcol]

Don’t compare yourself with others, because it only makes you desperate and ungrateful for what you have.But stay aware of what other people are doing.

Example:At the workplace, if two coworkers are arguing, don’t take sides or jump in. 
Just observe why it happened, so you don’t make the same mistake.

That’s the mindset of smart and successful people.

You are right, it is better not to compare yourself with others, especially if that person is more articulate, respected and competent than you. But in this forum I have also seen some people who compare themselves with someone whose contribution may never be forgotten. I do not want to name him here. But despite being an incompetent person, he was criticizing the responsibilities of a competent person. I was surprised how an incompetent person was comparing himself with a competent person. I was surprised to think how the incompetent person was ignoring all his own work and finding fault with the work of a responsible and competent person. And the incompetent person thinks himself so intelligent that he calls the person in a more competent position stupid.

I do not know if my words are actually related to this topic and have gone off topic. But seeing your topic, I remembered how people love to excessively poke their noses into the responsibilities and knowledge of others.

[Decimetre]

Stay out of other people’s matters, but don’t be blind to what’s going on around you. 
Don’t compare yourself with others, because it only makes you desperate and ungrateful for what you have.But stay aware of what other people are doing.

I will call this "Minding your business". In life, everyone can not have equal calling neither do we compete with everyone. The best person to compete with should be your self, challenge your self to be better than you were previously. When you see someone's achievements, the right thing to do is get motivated, work harder and set your goals straight: Becoming better.

In another context, staying out of people's matters but not being blind to what's happening around you implies, being security conscious. When you live in a place, don't meddle into people's affairs, don't get involved if not asked to contribute. Keep a safe space and should you see situations that may explode into bigger issues, observe and plan your escape and safety. People are angry in the world right now and if you keep pushing yourself where you're not wanted, you may get yourself into troubles that are avoidable.

Example:At the workplace, if two coworkers are arguing, don’t take sides or jump in. 
Just observe why it happened, so you don’t make the same mistake.

That’s the mindset of smart and successful people.

You may not take sides, but that doesn't stop you from being human. Work places require a high level of self control to walk out of every problems that comes with it. Some work places issues may start with just one person's complaint, if you don't speak the truth when your opinion is needed (simply because you want to play smart), when it gets to your turn every other person will keep mute. Always remember that injury to one should be injury to all and that's what makes work places stronger and more interactive. In all you do, just use your discretion and know when to stop. If your opinion is not needed, don't give it out.

[o48o]

Stay out of other people’s matters, but don’t be blind to what’s going on around you. 
Don’t compare yourself with others, because it only makes you desperate and ungrateful for what you have.But stay aware of what other people are doing.

Example:At the workplace, if two coworkers are arguing, don’t take sides or jump in. 
Just observe why it happened, so you don’t make the same mistake.

That’s the mindset of smart and successful people.

Most of things shouldn't be your business, but if you witness someone getting bullied and don't do anything about it. And if you even defend that by staying "above it", because it's not your business, it doesn't speak highly of your character.

And it's healthy to compare yourself to others, because you live amongst people. In fact that's pretty much mandatory if you want to build any sort of empathy skills. Comparison doesn't mean competition.
It's also a matter of perspective, because comparing yourself to others that have not been as lucky can make you grateful for your own life situation.

What's harmful is trying to copy other people by having same goals because you want to fit in. That way you are only going to lose yourself and what you want.

[programmer3666]

Yeah always mind your business but also try to keep your eyes open you don't have to jump into every drama, but watching how things go down can save you from making the same mistakes. Always try not to be nosy but learn without having to go through the pain yourself. Smart and clever people pick up lessons from other people's errors. You also avoid unnecessary stress. When you stay out of other people's mess, you protect your peace. But staying aware means you are not caught off guard when something affects you directly too. Just make sure to balance it, like don't be the person who always interferes, but don't be the one who never sees the signs either.