Contradictions do not exist. Whenever you think you are facing a contradiction, check your premises. You will find that one of them is wrong.
Absence of evidence is not evidence of absence.
Arguments that prove too much prove nothing.
Men's arguments often prove nothing but their wishes.
The irrationality of a thing is no argument against its existence, rather a condition of it.
He who refuses to do arithmetic is doomed to talk nonsense.
Irrationally held truths may be more harmful than reasoned errors.
All generalizations are dangerous, even this one.
'Obvious' is the most dangerous word in mathematics.
When you don't know what you're talking about, it's hard to know when you're finished.
To assume that someone's views are invariably influenced or shaped by his or her partner is lazy. It is an intellectual crutch we grope for when we do not have an effective counter to someone's argument.
What is in question is a kind of book reviewing which seems to be more and more popular: the loose putting down of opinions as though they were facts, and the treating of facts as though they were opinions.
He uses statistics like a drunk uses lamp-posts, more for support than illumination.
A belief is not true because it is useful.
Both economics and politics are false sciences.
Bad criticism recites rote arguments. The shame of rote arguments isn't just that they're cliches, though they are, but that they tend to hide from us why a critic is actually thinking what they're thinking.
