But that all men should live in the same beautiful house is not a dream at all; it is a nightmare.

That a man should love all old women is an ideal that may not be attainable.
But that a man should regard all old women exactly as he regards his mother is not only an unattainable ideal, but an ideal which ought not to be attained.

I do not know if the reader agrees with me in these examples; but I will add the example which has always affected me most.
I could never conceive or tolerate any Utopia which did not leave to me the liberty for which I chiefly care, the liberty to bind myself.
Complete anarchy would not merely make it impossible to have any discipline or fidelity; it would also make it impossible to have any fun.

To take an obvious instance, it would not be worth while to bet if a bet were not binding.

The dissolution of all contracts would not only ruin morality but spoil sport.