"It is not the business of the law to make people good, but to prevent them from doing harm."

"The liberty of the individual must be thus far limited; he must not make himself a nuisance to other people."

"The human faculties of perception, judgment, discriminative feeling, mental activity, and even moral preference, are exercised only in making a choice."

"That the only freedom which deserves the name, is that of pursuing our own good in our own way, so long as we do not attempt to deprive others of theirs, or impede their efforts to obtain it."

"The grand, leading principle, towards which every argument unfolded in these pages directly converges, is the absolute and essential importance of human development in its richest diversity."