If you publicize your mistakes, eventually someone will say they are remembered because you were right so often.
Error is boundless.
Nor hope nor doubt,
Though both be groundless,
Will average out.
Those who trust their first thought sometimes have a second, but rarely a third.
Vehemence is the infallible sign of opinion.
The admission that irreparably damages the argument is introduced, by convention, with “of course”.
The hedgehog, who knows one big thing, has many disciples, and the fox, who knows many things, has none.
99% sure is about 45% correct.
The erroneous belief is the minor problem, the excessive conviction the major one.
Y explains X, and Z explains Y, and do not inquire too deeply after Z.
Continuous moral progress of the species is an idea so grotesquely flattering that it cannot possibly be true.
To err is human; when our betters err, not to exult, divine.