one thing in Nature whereof the uses to human life are yet thoroughly
understood"--a saying which is still as true now as when it was written.
And, lest I should be supposed to be taking too sanguine a view, let me
give the authority of Sir John Herschel, who says: "Since it cannot but be
that innumerable and most important uses remain to be discovered among the
materials and objects already known to us, as well as among those which
the progress of science must hereafter disclose, we may hence conceive a
well-grounded expectation, not only of constant increase in the physical
resources of mankind, and the consequent improvement of their condition,
but of continual accession to our power of penetrating into the arcana of
Nature and becoming acquainted with her highest laws."

Nor is it merely in a material point of view that science would thus
benefit the nation. She will raise and strengthen the national, as surely
as the individual, character. The great gift which Minerva offered to
Paris is now freely tendered to all, for we may apply to the nation, as
well as to the individual, Tennyson's noble lines:--

"Self-reverence, self-knowledge, self-control:
These three alone lead life to sovereign power,
Yet not for power (power of herself
Would come uncalled for), but to live by law;
Acting the law we live by without fear."

"In the vain and foolish exultation of the heart," said John Quincy Adams,
at the close of his final lecture on resigning his chair at Boston, "which
the brighter prospects of life will sometimes excite, the pensive portress
of Science shall call you to the sober pleasures of her holy cell. In the
mortification of disappointment, her soothing voice shall whisper serenity
and peace. In social converse with the mighty dead of ancient days, you