Not even “OK Boomer” material, since these were hoary old axioms before Abe Lincoln had his first shave.
Waste not, want not. Checking my privilege, granted, since a big bad hit would wipe me out regardless of frugality. But when you can always make do, you never do without.
“Hunger makes the best sauce. Keeping from getting jaded by some degree of self-denial. Gratification is a bottomless pit; satisfaction is a commanding height.
I’m a little lad who loves berries and cream. Wait - that’s a great truth but not an aphorism.
I’d rather be lucky than good.
I wish I was born rich rather than good looking
If it ain’t broke, don’t fix it.
Fool’s names and fool’s faces
Always appear in public places
You get what you pay for.
No pain, no gain.
What goes around, comes around.
Tit for tat.
There’s no free lunch.
In my opinion, these are all making the same point, namely, that everything will eventually balance out, like it or not.
A Discordian is Forbidden of Believing what he Reads.
Play stupid games; win stupid prizes.
A couple of them:
Not my circus, not my monkeys. Not original but a great expression.
All jobs are harder than they look. This one’s original. It’s a way of keeping myself humble when frustrated waiting on things.
A stitch in time saves nine.
An ounce of prevention is worth a pound of cure.
[both definitely expressing the same sentiment]
In chaos there is opportunity
It’s an ill wind that blows nobody any good
Early to bed, early to rise and you’ll get your own damn breakfast.
Accept the things I cannot change (other people, most things), change the things I can (myself, my attitudes).
Pardon me. What kind of Starburst did you just say?
The early bird gets the worm.
The early worm gets the bird.
The good is the enemy of the best.
The best is the enemy of the good.
Your failure to plan ahead doesn’t make it my emergency.
It’s nice to be important, but it’s more important to be nice.
Fool me once, shame on you; fool me twice, shame on me.
Sorry, OP specified corny.
One I made up myself, and I abide by it:
If it’s worth doing, it’s worth over-doing.