People who think they know everything are a great annoyance to those of us who do.
Where there’s smoke, there’s smoke.
Many kinds of monkeys have a strong taste for tea, coffee and spirituous liqueurs.
If you thought that science was certain – well, that is just an error on your part.
Philosophy of science is about as useful to scientists as ornithology is to birds.
There is no settling the point of precedency between a louse and a flea.
There are three rules for writing a novel. Unfortunately, nobody knows what they are.
H L Mencken
For every complex problem, there is an answer that is clear, simple, and wrong.
Only three people have ever really understood the Schleswig-Holstein business—the Prince Consort who is dead—a German professor, who has gone mad—and I, who have forgotten all about it.
It has been said that man is a rational animal. All my life I have been searching for evidence which could support this.
What is work? Work is of two kinds: first, altering the position of matter at or near the earth’s surface relatively to other such matter; second, telling other people to do so. The first one is unpleasant and ill paid; the second is pleasant and highly paid.
Silvanus P Thompson
What one fool can do, another can.
(from Calculus Made Easy)
Half the money I spend on advertising is wasted; the trouble is, I don’t know which half.