y cautiously avoided
Cheyne Row." Then there was another man Spencer avoided, although for a
different reason; this individual was John Tyndall.

On the death of Tyndall, Spencer wrote:

"There has just died the greatest teacher of modern times: a man who
stimulated thought in old and young, every one he met, as no one else I
ever knew did. Once we went together for a much-needed rest to the Lake
District. Gossip, which has its advantages in that it can be carried on
with no tax on one's intellectual powers, had no part in our
conversation. The discussion of great themes began at once wherever
Tyndall was.

"The atmosphere of the man was intensely stimulating: everybody seemed
to become great and wise and good in his presence.

"We walked on the shores of Windermere, climbed Rydal Mount, rowed
across Lake Grasmere (leaving our names on the visitors' list), and all
the time we dwelt upon high Olympus and talked.

"But, alas! Tyndall's vivacity undid me: two days of his company, with
two sleepless nights, and I fled him as I would a pestilence."

But Carlyle growled out one thing in Spencer's presence which Spencer
often quoted. "If I had my own way," said Carlyle, "I would send the
sons of poor men to college, and the sons of rich men I would set to
work."

Manual labor in right proportion means mental development. Too much hoe
may slant the brow, but hoe in proper proportion develops the
cerebellum.

In the past we have had one set of men do all the work, and another set
had all the culture: one hoes and another thirsts. There are whole areas
of brain-cells which are evolved only through the efforts of hand and
eye, for it is the mind at last that directs all our energies. The
development of brain and body go together--manual work is brain-work.
Too much brain-work is just as bad as too much toil; the misuse of the
pen carries just as severe a penalty as the misuse of the hoe. And it is
a great satisfaction to realize that the thinking world has reached a
point where these propositions do not have to be proven.

There was a time when Spencer regretted that he had not been sent to
college, instead of being set to work. But later he came to regard his
experience as a practical engineer and surveyor as a very precious and
necessary part of his education.

John Tyndall and Alfred Russel Wallace had an experience almost
identical. In childhood John attended the village school for six months
of the year, and the