You need not to think that because you've picked up a little knowledge of practical mathematics, and because you have found some scantling of the elements of chemistry at the bottom of a dyeing vat, that therefore you're a neglected man of science; and you need not to suppose that because the course of trade does not always run smooth, and you, and such as you, are sometimes short of work and of bread, that therefore your class are martyrs, and that the whole form of government under which you live is wrong. 
You need not think that because you've picked up a little mathematics, and the elements of chemistry at the bottom of a dyeing vat, that therefore you're a neglected man of science. 