He could be flint-hard, but he could also be soft.

A disgrace. If it's hard it's hard, if it's soft it's soft.

Weariness can snore upon the flint, when resty sloth finds the down pillow hard.

The soft stuff is always harder than the hard stuff.

I'm fat and soft now. He's still lean and hard.

Flint has worked hard against tough odds to bring this city back, to prepare for a new century, ... I am quite sure the people I visited today ... have played a major role in the resurgence of this fine community.