Two-fifths Quotes
Herschel's argument was... Since with such a telescope one can see a star ten times as far off as is possible to the naked eye, this telescope has the power of penetrating into space ten times farther than the eye alone. But this number ten, also, expresses the ratio of the diameter of the objective to that of the pupil of the eye, consequently the general law is that the space-penetrating power of a telescope is found by dividing the diameter of the mirror in inches by two-fifths. The diameter of the pupil of the eye (two fifths of an inch) Herschel determined by many measures.
William Herschel
But giving the provisions the very worse construction, what does it amount to? I answer - It is a downright disability laid upon the slaveholding States; one which deprives those States of two-fifths of their natural basis of representation. A black man in a free State is worth just two-fifths more than a black man in a slave State, as a basis of political power under the Constitution. Therefore, instead of encouraging slavery, the Constitution encourages freedom by giving an increase of "two-fifths” of political power to free over slave States. So much for the three-fifths clause; taking it at is worst, it still leans to freedom, not slavery; for, be it remembered that the Constitution nowhere forbids a coloured man to vote.
Frederick Douglass
