For every problem, there is a neat, plain solution…and it is always wrong.

For every vision, there is an equal and opposite revision.

Four-wheel-drive just means getting stuck in more inaccessible places.

Free advice costs nothing until you act upon it.

Free time which unexpectedly becomes available will be wasted.

Freud’s 23rd law: ideas endure and prosper in inverse proportion to their soundness and validity.

Friends come and go, but enemies accumulate.

Frustration is not having anyone to blame but yourself.

Genius is 1% inspiration, and 99% perspiration.

Geologists do not dress for success unless they are trying to convince others that they are going on interviews.