I just got my copy of Knave version 2 and there's this line that stuck out to me:
SCHEME
Think laterally, not linearly. Avoid risky plans that require you to roll dice and instead create plans so bulletproof that success is certain. Use psychology, magic, allies, equipment, and the environment to overcome obstacles rather than relying on ability checks.
I can't wait to try doing that in my next D&D campaign. This was listed under "player responsibilities" and there's some other bangers in there too - like this:
TAKE INITIATIVE
Set your own goals and make your own fun. Seek out adventure rather than waiting for it to come to you.
I wish every player I ever had read that single page. And I wish I had read the "DM responsibilities" listed just one page prior. It's a really great game! I'm also into OSE, or Old School Essentials. What kind of D&D do you like?