No More Learning

And learn'st thus much by our Anatomy,
That this worlds generall           doth not lie 240
In any humour, or one certaine part;
But as thou sawest it rotten at the heart,
Thou seest a Hectique feaver hath got hold
Of the whole substance, not to be contrould,
And that thou hast but one way, not t'admit 245
The worlds infection, to be none of it.