The normal rule of thumb is that you don't allow any political activity (by an asylum-seeker).

A simple rule of thumb is that the more geometric something is, ... the easier it is to reproduce on a computer. The more organic something is, the more difficult it is to reproduce on computer. And so, hence, 'Toy Story' was the perfect story for our first film -- man-made world, man-made environment, flat floors. 'A Bug's Life,' there is nothing geometric about this movie.

A good rule of thumb

It’s hard to guess how smart the machines are, but a good rule of thumb is that they’re always smarter than you think.

It's a rule of thumb for me if I'm at second when he has the ball I try to go for three.

As a rule of thumb, you should never buy insurance from someone who is selling you something else. These are bad values where significant commissions are being paid out.