I use good, sturdy mugs for my coffee.

But for you to crash into a sturdy concrete wall with enough force to destroy it, and end up with merely these wounds, is rather commendable, Araragi-kun.

I don't look it, but toughness is one thing I... have...

But Mommy wasn't strong physically.

She's not very healthy to begin with.

In fact, once it heals, the bone will be stronger than before.

Seems like you have a sturdy set of abs.

I was made pretty durable, so I've been alive for almost two hundred years.

You can't be a soldier if you don't grow up healthy.

Yagi-san knows that Nagisa has a weak body.

It's all right...

You won't become strong if you don't eat everything.

Such trees will become strong and sturdy.

I have never been very strong physically, and recently, it's been getting worse.

Was she always the frail type?

Don't overexert yourself, since you're not very strong.

Light and sturdy, with great reception, it's wonderful during emergencies.

To compensate, we need a light, strong structure.

I did my best, but…

Well, I guess one of Haruhi's good points