The natural energy of all countries is influenced by climate; and
civilization being dependent upon industry, or energy, must accordingly
vary in its degrees according to geographical position. The natives of
tropical countries do not progress: enervated by intense heat, they
incline rather to repose and amusement than to labour. Free from the
rigour of winters, and the excitement of changes in the seasons, the
native character assumes the monotony of their country's temperature.
They have no natural difficulties to contend with,--no struggle with
adverse storms and icy winds and frost-bound soil; but an everlasting
summer, and fertile ground producing with little tillage, excite no
enterprise; and the human mind, unexercised by difficulties, sinks into
languor and decay. There are a lack of industry, a want of intensity of
character, a love of ease and luxury, which leads to a devotion to
sensuality,--to a plurality of wives, which lowers the character and
position of woman. Woman, reduced to that false position, ceases to
exercise her proper influence upon man; she becomes the mere slave of
passion, and, instead of holding her sphere as the emblem of
civilization she becomes its barrier. The absence of real love
engendered by a plurality of wives, is an absolute bar to progress; and
so long as polygamy exists, an extension of civilization is impossible.
In all tropical countries polygamy is the prevailing evil: this is the
greatest obstacle to Christianity. The Mahommedan religion, planned
carefully for Eastern habits, allowed a plurality of wives, and
prospered. The savage can be taught the existence of a Deity, and become
a Mussulman; but to him the hateful law of fidelity to one wife is a bar
to Christianity. Thus, in tropical climates there will always be a
slower advance of civilization than in more temperate zones.

The highest civilization was originally confined to the small portion of
the globe comprised between Persia, Egypt, Greece, and Italy. In those