Edmund Burke quotes - page 12
The great instrument of all these changes, and what infuses a peculiar venom into all of them, is party. It is of no consequence what the principles of any party, or what their pretensions, are; the spirit which actuates all parties is the same; the spirit of ambition, of self-interest, of oppression, and treachery. This spirit entirely reverses all the principles which a benevolent nature has erected within us; all honesty, all equal justice, and even the ties of natural society, the natural affections.
Edmund Burke