Not making the same mistake twice seems exceedingly optimistic.
Error is boundless.
Nor hope nor doubt,
Though both be groundless,
Will average out.
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.
The idealist wants extra credit for the wrong answer.
Every established bad practice relies on a vivid and convincing precedent; it has always worked, at least once.
Being right twice a day makes a stopped clock useless: it can’t be depended on even for the wrong time.