Whatever works for me at this stage

Read often.

Write down regularly.

Re-evaluate at intervals.

A little bit of everything

Take the stairs.
Actual costs are often twice the listed price.
Buy a tourist guidebook to your home town or region.
Don't wait in line, it's rarely worth it.
Be consciously inflexible with minor things like clothing, so you can be more flexible where it's important.
Insurance companies are not on your side.
The more you give, the more you get.
Health is the most important asset you have.
Restrictions are good, they will give you freedom.
Be frugal no matter how much you think you have.
You don't control what happens, you control how you respond

Just getting older is not an achievement.
If you are alive, that means you still have lessons to learn.
If you don't write it down, you will forget it.
Your growth as a conscious being is the number of uncomfortable conversations you are willing to have.
Don't keep making the same mistakes; try to make new mistakes.
It is easier to change your thinking by changing your behavior than vice versa.
You often do easy things to avoid the hard things.
That thing that made you weird, could make you great.
You are what you do, not what you tell or think you are.
What you consume and spend your time on influences your thoughts and behavior.
What you do on your bad days matters more than what you do on your good days.
Read more books. Literature at best. Self-help at worst.
Copying others is a good way to start but not to end.

Consistency is more important than quantity.
Average returns sustained over an above-average period of time yield extraordinary results.
A long game will compound small gains to overcome even big mistakes.
We tend to overestimate what we can do in a day, and underestimate what we can achieve in a decade.
Focus on directions rather than destinations.
Good things happen slowly, bad things happen fast.

Treating a person to a meal never fails.
Forgiveness is not something we do for others; it is a gift to ourselves.
Hate is the poison you drink and hope that someone else might die.
Accept compliments, don't deflect them.
You can't reason someone who can't reason.
Being extremely polite to rude people is the best response.
Getting cheated occasionally is a small price, because when you trust, they generally treat you best.
Don't treat people as bad as they are. Treat them as good as you are.
You see only a small part of another person, and they see only a small part of you.
Promptness is a sign of respect.
For the best present spend only half the money you think you should, but double the time with them.
Loan and don't expect it to get it back. Borrow something and return more.
Ultimately, you can't change others.
Friendships form via shared context, not shared activities.

Make eye contact.
Apologize quickly, specifically, sincerely.
It's not an apology if it comes with an excuse.
It is not a compliment if it comes with a request.
Anything you say before the word “but” does not count.
Criticize in private, praise in public.
Elevate good behavior rather than punish bad behavior.
Before speaking ask yourself: Is it true? Is it necessary? Is it kind?
Speak confidently as if you are right, but listen carefully as if you are wrong.
A dumb person, who can communicate well, can do much better than a smart person who can't communicate well but it's much easier to improve communication skills than intelligence.
"Yes and" instead of "No but"

Smart people become stupid when talking about politics.
The best a government can do is to slow down deterioration.
Humans should not govern humans.
Homogenous and collectivist societies promote stability through identity. Heterogeneous and individualistic societies promote progress through friction.
The chances that you live in a bubble is very high. You start to assume that the majority of all people are reasonable and want the same as you do.
Humanity isn't as advanced as you think. Our societies are fragile.

Humans shouldn't write code.
The best line of code is the one not written.
The second best line of code is the one you can delete.
Invest time in learning the basic tools of the trade, it often correlates to the overall skill as developer.
SQL is the most important tool at your disposal.
ORMs are always a mistake.
Spend more time on the design of parts that are one-way doors. Ideally, try to make more like two-way doors.
A good architect finds balance between abstraction and the complexity it inherently introduces.
Sharing code as a library is often the wrong, duplication the right choice. It's better to trade verbosity for flexibility.
Always start with the most simplistic approach.
It’s quicker to write ten big balls of mud and see where it gets you than try to polish a single turd.
Don't fall into the trap that one module must be responsible for one thing only, instead it should solve one problem.
If you don't know what you are doing or even wrong, at least be consistent.
Keep things that change more often from things that change less often or from the things which are more difficult to change.
A loosely coupled system is one where you can delete parts without rewriting others.
Loose coupling is about being able to change your mind without changing too much code.