Freebsd Fortunes 3

Beware of bugs in the above code;
I have only proved it correct, not tried it.
                -- D. Knuth

Beware of friends who are false and deceitful.

Beware of geeks bearing graft.

Beware of low-flying butterflies.

Beware of mathematicians and all those who make empty prophecies.  The
danger already exists that the mathematicians have made covenant with
the devil to darken the spirit and to confine man in the bonds of hell.
                -- St. Augustine

Beware of Programmers who carry screwdrivers.
                -- Leonard Brandwein

Beware of strong drink. It can make you
shoot at tax collectors -- and miss.
                -- Lazarus Long, "Time Enough For Love"

Beware of the man who knows the answer before he understands the question.

"Beware of the man who works hard to learn something, learns it, and finds
himself no wiser than before," Bokonon tells us.  "He is full of murderous
resentment of people who are ignorant without having come by their
ignorance the hard way."
                -- Vonnegut

Beware of the Turing Tar-pit in which everything
is possible but nothing of interest is easy.