Three good ones

One:

Experience demands that man is the only animal which devours his own kind, for I can apply no milder term to the general prey of the rich on the poor.

-- Thomas Jefferson

Two:

You show me a capitalist, and I'll show you a bloodsucker.

-- Malcolm X

And three:

The point is that you can't be too greedy.

-- Donald Trump

They bear thinking about. All of them.
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