and accurate knowledge.

If you are devoting your odd hours to literature, it is unnecessary
to make pretensions to a knowledge of chemistry. Do not be afraid to
say, "I do not know." We all expect too much learning from one another,
especially elders from younger people. If John can tell his father
a great deal about surveying, and Mary cannot, no matter: she can tell
them both a good deal about physiology.

As far as possible, in your studying or reading, group those subjects
together which belong together. If you are inclined to the physical
sciences, bring into your work natural philosophy, general chemistry,
general physiology, biology, geology, and mineralogy. If you desire
to know more of one branch of natural science, as, for example, biology,
why not group zoology, conchology, anatomy, physiology, botany,
microscopy? I would always be careful not to make the group too large,
though learning from one science helps in another.

This grouping system is admirable. I believe that an honest observer
of the highest institutions for learning in our land, whether they
were founded for the interests of young men or young women, will remark
that there is too small a chance for grouping studies, and that the
opportunities for choosing electives are too few. The American idea
is, to get through the academy or college, and graduate with a diploma,
rather than to pursue a study till such time as those who know most
about that branch of learning shall deem a student ready for entrance
upon higher work. I must think the German universities superior to
ours in this respect. Life is short, and we can learn but little. I
do not understand why it is necessary to spend several years in the
preparation of certain studies for entrance to a college, when there