A mere index hunter, who held the eel of science by the tail. Index-hunter is a term used mockingly, meaning one who acquires superficial knowledge merely by consulting indexes. The '[holding] the eel of science by the tail' allusion was used in 1728 by Alexander Pope (q.v.).

I think for my part one half of the nation is mad - and the other not very sound.

To the valiant actions speak alone.

A man's opinion of danger varies at different times, in consequence of an irregular tide of animal spirits; and he is actuated by considerations which he dares not avow.

There is not room to swing a cat.

Some folks are wise and some are otherwise.

True courage scorns to vent her prowess in a storm of words; and to the valiant action speaks alone.