To accomplish this purpose, men devise certain establishments,--institutions, constitutions, statutes--human machinery for attaining the divine end in the individual and the social form. But here is the condition of existence which all these establishments must conform to. Every thing in nature has a certain constant mode of action: this, we call a law of nature. The laws of nature are universal, unchangeable, and perfect as God, whose mind they in part express. To succeed in any thing, we must find out and keep the natural laws relating thereto. There are such laws for the individual,--constant modes of action which belong to human nature, writ therein by God. My mind and conscience are the faculties by which I learn these laws. Conscience perceives by instinct; mind sees afterwards by experiment. There are also such laws for society, constant modes of action, which belong to human nature in its social form. They are also written in the nature of man. The mind and conscience of the individuals who make up the society are the faculties by which these laws likewise are found out. These laws, constant modes of individual or social action, are the sole and exclusive basis of human establishments which help attain the end of individual and social life. What conforms to these natural rights is called right; what conforms not, is wrong. A mill-dam or a monument must conform to the statical laws of matter, or not serve the purpose it was meant for; a mill or a steam-engine must conform to the dynamical laws of matter, or it is also useless. So all the social establishments of mankind, designed to further the positive or negative functions of society, must conform to the laws of human nature, or they will fail to achieve the purposes of individual and social life.