The last heresy is orthodoxy.
Operations of thought are like cavalry charges in a battle — they are strictly limited in number, require fresh horses, and must only be made at decisive moments.
The less a discipline resembles mathematics, the less likely a clever theory is to be true.
If you wish to make a belief disappear, don’t waste your time demonstrating that it is an illusion. Demonstrate that it makes you fat.
Credulity is fixed: doubting something obvious just clears space for believing something foolish.
In every discipline the foundations come last; in most of them we still don’t know what they are.
The critique is usually pertinent, the positive program disastrous.
One ought to reorganize one’s opinions at least as often as one’s closets.
People should do their own thinking no more than they should do their own plumbing.
Great thinkers are usually better understood by their detractors than their admirers.
Most people, on most matters, are not, in fact, entitled to an opinion.