She would know, still further, the relation of body to mind, and of
mind to body--of body and mind to spirit, and of spirit to body and
mind. She would study the particular effect of one passion, or faculty,
or affection, upon the body, or upon particular functions of the bodily
system--and the more remote or more immediate effects of diseases of a
bodily organ on mind and spirit. She must know all this, and a thousand
times, yea, ten thousand times as much, before she is qualified to go
far in the work of self-knowledge.

But she must go beyond even all this, and study her own peculiarities.
It is not sufficient to understand the general laws and relations of
the human economy; she must understand herself in her own individual
character--physically, intellectually and morally. She must understand
the peculiarities of her physical frame, of her mental structure, and
of her spiritual condition--her relation to other spirits, particularly
to the Father of spirits.

How amazing and how extensive--I repeat it--the science of self-
knowledge! To be perfect in it we need the life of a Methuselah! But
something may be done, even in the short period of seventy years. And
if it be but little that we can do in a life time, this consideration
only enhances the value of that little.

Something, I have said, may be done in the short period of seventy
years. But I might say more. Something may be done in a single day. And
years are made up of days. A little done, every day, amounts to much in
a whole year.

Let not the individual despair who can get but one new idea respecting
herself, in a day. If she can sit down at quiet evening and say, I know