The sunk cost fallacy traps us into persisting with choices that no longer benefit us, simply because we've invested in them.

Every investment (of time, money, energy) comes with a trade-off: the loss of potentially more rewarding opportunities.

The antidote to sunk cost is opportunity cost.

But planning is everything. Knowing that your new product won't survive first contact with real customers isn't a reason not to plan.

Having a plan is essential, but flexibility is as important. Prepare to adjust, enhance successful strategies, and discard ineffective ones. Planning should be a dynamic, ongoing process rather than a one-time event.

Reflect on the Golden Rule we learned as children: "How would you feel if that were done to you?" This timeless principle transcends cultures and religions, urging us to treat others as we wish to be treated. Integrating this into daily business and personal life fosters empathy. By considering both the giving and receiving ends of our actions, we can amplify their positive impact.

Enhancing this, if you're fortunate enough to have more context for the people for whom your decisions or behavior impact, consider individual preferences: "How would this specific person like to be treated?" This acknowledges the diversity in personal desires and needs.

Building a legacy of empathy and kindness, one decision at a time, is a superpower.

Codependency often manifests as an exaggerated responsibility for the well-being of those around us, leading us to consistently place their needs above our own. This pattern, though well-intentioned, can erode our sense of self and personal boundaries.

Don't be afraid of losing people. Be afraid of losing yourself by pleasing people.

Often, we highlight life's milestones—weddings, new homes, promotions—as our most significant experiences. But in practice, it's the accumulation of everyday moments that truly builds our sense of contentment and well-being.

This underscores a simple, profound truth: There are no ordinary moments, only the extraordinary ones to which we fail to give our conscious attention.

I'm disciplined about scheduling business meetings and high-leverage work, but I have to improve prioritizing personal connection and leisure in my calendar.

Without conscious planning, work can easily replace self-care. Your time investments reveal your true priorities. Show me your calendar and I'll show you your priorities.

The adage "quality over quantity" rings true in friendships, leaving us to define what "friend" means personally.

For me, I'm grateful for the handful of non-relatives whose homes I have access to,  who would trust me with their social security numbers, whose refrigerators I can access without their permission, and upon whom I can trust with any of my insecurities or my life itself.

Whatever your definition, remember the importance of not just seeing others this way, but of being this friend as well.

For most topics, when someone says "There's nothing you can say to convince me otherwise" they are announcing their unwillingness to change their beliefs based on an evidence-based argument. It's impossible for a change to take place when there is no openness to being wrong.

One healthy habit for those who do seek change or growth is to value, seek, and become CURIOUS about how/where we might be wrong, rather than why we're certain we're right.

You are precisely where you are today primarily due to the energy you put into past decisions.  Want to change future outcomes?  It's a simple formula (simple yet very difficult to deploy):

C+E=O.  Choices + Energy = Outcomes.
The Choices you make + the Energy you put in = your Outcomes.

It just happens that the acronym is "CEO", reminding us that we are the CEOs of our lives.

Leverage the Domino Effect. Find one task or action that acts as the catalyst for a positive chain reaction.

Example: Prioritize sleep. Opting for quality sleep improves overall well-being and can catalyze other changes, reducing late-night outings; and early rising for exercise or meaningful pursuits.

Tiny choices spiral into significant life shifts.

Too often, people get emotional and start personal attacks during disagreements, moving away from the original issue.  When you attack or accuse someone, you're on opposite sides of the table.  Attacking the problem means you're both on the same side of the table, and the problem is on the other. 

Assuming you're both acting in good faith and want to resolve an issue, the first step is identifying exactly what you disagree on. The "what" is always an idea or opinion and never a person.

It's possible to win without others losing, and it's possible to be ultra-competitive with who you once were without comparing your progress to others.

Often there are opportunities to collaborate and build something greater than ourselves. Not everything in life is a zero-sum contest. Collaboration is an alternative to competition.

Placing energy on relationships - both friendships and primary relationships - is an investment. Worldwide studies over several decades reveal that the quality of our relationships is one of the most reliable predictors of our overall well-being.

The grass isn’t greener on the “other side.” It’s greener where you water it.

The story of overcoming your own challenges could catalyze others to reconsider their perspectives, make positive changes, and act as a survival guide for strangers you may never meet.

Share your success stories. It's a sure way to improve your happiness - and with luck, that of others.

Writing exposes unclear thinking and helps us organize our sincere thoughts and opinions.

Although everything I've written has likely been said before, occasionally, my words resonate with people in a positive, life-changing way.

Whether you write/journal for yourself or others, knowing there is a high potential for intrinsic motivation and, if we're lucky, providing inspiration for others is helpful.

We all have a list of things we tell ourselves we "should" do.  The thing is, what we should do never happens.  What we do are the things we "must" do.

Willpower is short-lived and over-rated.  Intrinsic motivation driven by the desire to grow is not.

If you find you're continually telling yourself that you should do something, either change it to a "must" or stop talking about it.

A complaint is the antithesis of gratitude. It's an inherent way of saying: reality is what it is, but it SHOULDN'T be!

Which makes as much sense as being in the freezing cold and saying: it shouldn't be cold.

Once you know the fundamentals of a sport or craft, you’ll need competitive partners in 3 categories: those that are better than you, those that challenge you, and those you’re better than.

You’ll be forced to up your game and constantly strive by training with better people than you. You’ll reinforce your skill set by challenging yourself with those at your level. And you’ll be able to teach those you’re better than. And teaching reinforces your learning more than anything else.

Most English speakers use roughly 1,000 of the 250,000 English words in the dictionary.  Knowing that a tiny fraction of words will immediately allow you to have functional fluency makes learning English less daunting.

Here are a couple of other examples:

Learning to play just four chords on the guitar or piano will allow you to play hundreds of songs

Of the thousands of exercises and fitness routines, pushing, pulling, and squatting your body weight a few days per week will allow you to strengthen your body and gain muscle/lose fat faster.

What are the few most critical things you can learn/develop to leverage 80% of the results you seek? 

Unless it’s a revelation for you that “communication is the key” to relationships of any kind, it’s not useful without context on how to communicate in a healthy way.

Here are details on just a few things I’ve learned from my personal communication failures:

• Fear of consequences or aversion to uncomfortable conversations has led to worse consequences than the discomfort I thought I was protecting (one of my most glaring deficiencies).
• Body language, tone, and attitude (HOW you say what you say) are as important as the message itself (WHAT you say).
• A conversation at a time when one or both parties are not the best versions of themselves could be the difference between understanding/growth and a relationship-damaging outcome
• l must be able to articulate your argument or feelings in a way that makes you feel heard. If I don’t,  you’re not ready to hear what I have to say.  The reverse is also true.