That the great are so rarely good speaks mostly to the poverty of our moral intuitions.
Error is boundless.
Nor hope nor doubt,
Though both be groundless,
Will average out.
If you can convince a man to believe nothing, you can convince him to believe anything.
The best-attested, most frequently reproduced result in social science is that social scientists do not have the faintest idea how to conduct a study.
Not making the same mistake twice seems exceedingly optimistic.
The stupider the idea, the more intelligent you have to be to believe it.
If you are stupid, you think your political opponents are evil, and if you are evil, you think they are stupid.
Social justice is to justice what social science is to science.
We say of posthumously venerated figures that they waited generations or centuries to receive their due. It does not occur to us that they may have deserved their earlier neglect, and that it is we who have been taken in.
To the vicious cant of equal result is opposed the vaguer, more plausible, and still more vicious cant of equal opportunity.
To be great is to be misunderstood; but to affirm the consequent is rather more common.