Friction creates heat, and heat strengthens iron, just as mental struggle sharpens the mind. Without effort and challenge, knowledge remains shallow and fragile; true understanding is forged in labor

https://www.youtube.com/watch?v=rHPOyS6mjwI

it's a quote i made based on my understanding of this video, is it good?

4 points · 2 comments · view on lemmy.world

2 Comments

panda_abyss@lemmy.ca · 6 pts · 1y (1 reply)

Heat and friction will also permanently damage a blade

Jake_Farm@sopuli.xyz · 2 pts · 1y

Tempered metal can be undone by heat as well.