“Nothing is more narrow-minded than chauvinism or race hatred. To me all men are equal: there are jackasses everywhere, and I have the same contempt for them all. No petty prejudices!”

Source: 1950s, Portraits from Memory and Other Essays (1956), p. 198

Centennial Oration (4 July 1876) http://www.infidels.org/library/historical/robert_ingersoll/centennial_oration.html

Book I, Chapter 6
The History of Tom Jones (1749)

Source: Nobody Knows My Name

Part 1.3 Rights of Man
1790s, Rights of Man, Part I (1791)

The Ultimate Quotable Einstein by Alice Calaprice lists this as "probably not by Einstein". However, this post from quoteinvestigator.com http://quoteinvestigator.com/2014/04/29/common-sense/ traces it to a reasonably plausible source: the second part of a three-part series by Lincoln Barrett (former editor of 'Life' magazine) titled "The Universe and Dr. Einstein" in Harper's Magazine, from May 1948, in which Barrett wrote "But as Einstein has pointed out, common sense is actually nothing more than a deposit of prejudices laid down in the mind prior to the age of eighteen." Since he didn't put the statement in quotes it could be a paraphrase, and "as Einstein has pointed out" makes it unclear whether Einstein said this personally to Barrett or Barrett was recalling a quote of Einstein's he'd seen elsewhere. In any case, the interview was republished in a book of the same title, and Einstein wrote a foreword which praised Barrett's work on the book, so it's likely he read the quote about common sense and at least had no objection to it, whether or not he recalled making the specific comment.
Unsourced variant: Common sense is the collection of prejudices acquired by age eighteen.
Disputed

As quoted in Colored Patriots of the American Revolution https://books.google.com/books?id=Jy8OAAAAIAAJ&pg=PA107&lpg=PA107 (1855), by William Cooper Nell, p. 107
Speech (June 1853)
Context: A colored battalion was organized for the defense of New Orleans, and General Jackson publicly thanked them for their courage and conduct. When the country has required their blood in days of trial and conflict, they have given it freely, and we have accepted it. But, in times of peace, when their blood is not needed, we spurn and trample them under foot. I have no part in this great wrong to a race. Wherever and whenever we have the power to do it, I would give to all men, of every clime and race, of every faith and creed, freedom and equality before the law. My voice and my voice shall ever be given for the equality of all of the children of men before the laws of the Commonwealth of Massachusetts and the United States.