"[N]ormally it takes till middle age to realize that Left and Right are essentially at the extremes, the equivalent, totalitarian, they have different words for them. You know that nationalism, extreme nationalist, extreme socialism they don’t just meet in Berlin in 1933, they can meet at McGill in 1968, or whatever that was. So I became very acutely aware of the dangers, the hypocrisies, and sort of the extremism of the political extremes. And it cleansed me very early in my political evolution of any romanticism. I detested the extreme Left and extreme Right, and found myself somewhere in the middle."
January 1, 1970
https://en.wikiquote.org/wiki/Horseshoe_theory