She might enjoy friends, but they are not essential as health or work; she would be a strange woman if she did not prize beauty, but devoted love is worth far more than beauty or all the conquests it brings.

What is the essential for a chair ?--its capacity to be used to sit upon with comfort.

A house ?--that it is adapted to the making of a home.

You don't buy a printing-press to curl your hair with but to print, and in accordance with its printing power is it judged.

A boat's usefulness is determined by its worthiness in the water, to carry safely, rapidly, largely as is demanded of it.
This is the judgement sanity demands of everything.