Diamond is the hardest - 10 on the Moh's scale.
No, diamond is the hardest known natural substance in the world.
finding a cure for cancer
No.
The quote "The hardest thing to understand in the world is the income tax" was said by Albert Einstein. (According to Leo Mattersdorf, Einstein's tax accountant).
Diamonds are the hardest mateial we know of. Carbon steel is quite a lot less.
Figuring out the world and yourself. Finding an identity.
yes diomand is the hardest thing on earth
the hardest thing about arthritis is dealing with the horrible pain
The hardest thing about barrel racing is the ground.
Yes, diamonds are the hardest things in the world for now. Since they can cut any material and can only cut themselves with diamonds itself, it is scientifically proven to be the hardest element yet. However it is not the strongest.
I have to say the hardest thing about grade 7 is the bullying
The Hardest Thing - album - was created on 2009-01-25.