xy

Claimed by atheist Franklin Steiner, on p. 144 of one of his books to have appeared in Manford's Magazine but he never gives a year of publication.
Misattributed

Source: 1860s, First State of the Union address (1861)
Context: Labor is prior to and independent of capital. Capital is only the fruit of labor, and could never have existed if labor had not first existed. Labor is the superior of capital, and deserves much the higher consideration. Capital has its rights, which are as worthy of protection as any other rights. Nor is it denied that there is, and probably always will be, a relation between labor and capital producing mutual benefits. The error is in assuming that the whole labor of community exists within that relation.

The last sentence is from the 16 October 1854 Peoria speech, slightly paraphrased. No known contemporary source for the rest. It first appears, attributed to Lincoln, in US religious/inspirational journals in 1907-8, such as p123, Friends Intelligencer: a religious and family journal, Volume 65, Issue 8 (1908)
Misattributed

Address Delivered in Candidacy for the State Legislature (9 March 1832)
1830s
Context: Upon the subject of education, not presuming to dictate any plan or system respecting it, I can only say that I view it as the most important subject which we as a people can be engaged in. That every man may receive at least a moderate education, and thereby be enabled to read the histories of his own and other countries, by which he may duly appreciate the value of our free institutions, appears to be an object of vital importance, even on this account alone, to say nothing of the advantages and satisfaction to be derived from all being able to read the Scriptures, and other works both of a religious and moral nature, for themselves.

Variant: A woman is the only thing I am afraid of that I know will not hurt me.