Todays paper contains a great quote attributed to Jascha Heifetz:

No matter what side of an argument youre on, you always find some people on your side that you wish were on the other side.

But according to Heifetzs official website, the actual quote is:

No matter what side of an argument youre on, you always find some people on your side that wish you were on the other side.

Equally true, but a somewhat different flavour.