The temperate zones of the earth seem to be the most favourable to the mental and corporal energies of man, but all cannot be temperate zones.

A world, warmed and enlightened but by one sun, must from the laws of matter have some parts chilled by perpetual frosts and others scorched by perpetual heats.

Every piece of matter lying on a surface must have an upper and an under side, all the particles cannot be in the middle.

The most valuable parts of an oak, to a timber merchant, are not either the roots or the branches, but these are absolutely necessary to the existence of the middle part, or stem, which is the object in request.

The timber merchant could not possibly expect to make an oak grow without roots or branches, but if he could find out a mode of cultivation which would cause more of the substance to go to stem, and less to root and branch, he would be right to exert himself in bringing such a system into general use.
In the same manner, though we cannot possibly expect to exclude riches and poverty from society, yet if we could find out a mode of government by which the numbers in the extreme regions would be lessened and the numbers in the middle regions increased, it would be undoubtedly our duty to adopt it.