The yellow marker

Somewhere in your last thirty entries there is a sentence you should not lose.

You didn't plan it. You were three hundred words into an ordinary Tuesday, complaining about a meeting, and then your hands typed something like I say yes fastest to the people I fear disappointing — and moved on to the next paragraph, because you were writing, not editing. That is how journals work. The best sentences arrive unannounced, in the middle of something else, and are buried by Thursday.

On paper, you know exactly what to do with a sentence like that. You take the yellow marker off the shelf and drag it through the line, and from then on the page falls open there.

So that is what this is: a yellow marker.

How it works

Select the words — a phrase, a whole sentence, three sentences, mid-sentence to mid-sentence, it genuinely doesn't matter — and a small button appears above them: Mark as lesson. Click it and the text turns yellow, exactly like ink over paper. So this Tuesday paragraph:

…and the meeting ran long again because I kept smoothing things over. I say yes fastest to the people I fear disappointing. Anyway, lunch was good, S. brought the bread from the market…

becomes this:

…and the meeting ran long again because I kept smoothing things over. I say yes fastest to the people I fear disappointing. Anyway, lunch was good, S. brought the bread from the market…

Then keep writing. Nothing else happens, which is the point: marking a lesson costs one click and zero momentum. The words still count toward your 750; the page stays as bare as it was.

The marker doesn't care where sentences begin or end, either. If the true part runs across two of them, mark exactly the true part:

I keep saying I'll rest when things calm down. Things do not calm down — the calm is something I would have to make, and I didn't make any this week.

Everything you mark collects on one page, Lessons — a quiet list, newest first, each line showing the day and the words you marked:

Wed, 15 July 2026 — I say yes fastest to the people I fear disappointing Sun, 12 July 2026 — rest is a skill and I have stopped practising it Sat, 11 July 2026 — the tired version of me is not the honest version of me

And there they wait, until you have a minute to take one seriously.

From a sentence to a lesson

Click a line and it unfolds. The marked words sit at the top, still yellow, kept exactly as you wrote them — that part is never editable, because it's evidence. The date links back to the full entry, in case you need the morning around the sentence.

Underneath are three slots, all optional, all yours:

• A better way to say it. First drafts of the truth are usually baggy. "I say yes fastest to the people I fear disappointing" might tighten into "My yes is sometimes fear wearing a helpful face." Or it might not — some sentences arrive finished.
• Reflection. Room to think it through: what was happening that morning, where else this shows up, what it has cost you. This is where a nice observation either dissolves under questioning or hardens into something real. A soft hint under the field reminds you what you're aiming for, the way the stats page does.
• The lesson. One short, clear, actionable line. Not a quote, not a mood — an instruction you'd actually accept from yourself. "Before saying yes, ask whose disappointment I'm avoiding." The moment you write it, it becomes the item's title in the list. The raw sentence was the ore; this is the metal.

There is no deadline on any of this. A lesson can sit as a yellow phrase for a month before you touch it. Distilling is a different mood from writing, and the app doesn't pretend otherwise.

What it's for

The 750-word habit is good at producing self-knowledge and terrible at retaining it. You have probably learned the same thing about yourself four times — genuinely learned it, with the little jolt and everything — because each time it was learned into a Tuesday entry and never seen again. Growth that isn't collected has to keep being re-earned.

A lessons list is the difference between having insights and having them available. Say this year's list reads: ask whose disappointment I'm avoiding; book the rest before the calendar fills; don't make decisions after 22:00. That is not a journal anymore. That is an owner's manual, written by the only person qualified to write yours — and reading it back before a hard week does more for your actual happiness than a hundred borrowed quotes, because you can't argue with the author. You were there.

The small print, which is really the design

Deleting the highlight never deletes the lesson. Edit the entry, remove the yellow, delete the whole paragraph — the lesson survives, with the words it had. You did reflection work on it; an edit to Tuesday shouldn't be able to destroy it. The only way to delete a lesson is deliberately, on the Lessons page — and that removes the yellow from the entry too, so the two never disagree.

It never marks anything for you. No "this sentence seems important", no suggested highlights. Deciding what mattered is not a chore to automate — it is the reflection. The marker only ever moves when your hand moves it.

And it's as private as everything else. Lessons are your journal's sharpest, most personal sentences by definition, so they're encrypted at rest like the entries they came from, and they ride along in your export — a lessons.json next to your entries, yours to take anywhere.

One habit produces the pages. A yellow marker, used maybe twice a week, produces the book you were writing without noticing: the short one, with your name on it, that says how to live your life a little better. Keep it.