“A second wife is hateful to the children of the first; A viper is not more hateful.”
Source: Alcestis (438 BC), l. 309
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Euripidés 116
ancient Athenian playwright -480–-406 BCRelated quotes

“Hate and mistrust are the children of blindness”
England to Ireland, reported in Bartlett's Familiar Quotations, 10th ed. (1919).

“[N]o man hates God without first hating himself.”
Source: Peace of Soul (1949), Ch. 1, p. 11 http://books.google.com/books?id=ho40AAAAMAAJ&q=%22No+man+hates+God+without+first+hating+himself%22&pg=PA11#v=onepage

“She hated to lie but she hated arguments even more.”
Source: Briar Rose (1992), Chapter 16 (p. 93)

“Love commingled with hate is more powerful than love. Or hate.”
On Boxing (1987)

On his stated opposition to the use of the atomic bomb against the Japanese at the end of World War II, as quoted in Newsweek (11 November 1963), p. 107
1960s

“Anyone who hates children and dogs can't be all bad.”
Although very commonly attributed to Fields, this is derived from a statement that was actually first said about him by Leo Rosten during a "roast" at the Masquer's Club in Hollywood in 1939, as Rosten explains in his book, The Power of Positive Nonsense (1977) "The only thing I can say about W. C. Fields ... is this: Any man who hates dogs and babies can't be all bad."
Misattributed
Variant: Anyone who hates babies and dogs can't be all bad.