One man's 'magic' is another man's engineering. 'Supernatural' is a null word.

Spacemen die if they stay in one place.

If it can't be expressed in figures, it is not science; it is opinion. It has long been known that one horse can run faster than another - but which one? Differences are crucial.

Never tease an old dog; he might have one bite left.

The extremely tiny fraction who think regularly, accurately, creatively, and without self-delusion - in the long run, these are the only people who count.

Hit it! You have to hit it harder than that. Electrons are timid little things but notional; you have to let them know who’s boss.

Must be yearning deep in human heart to stop other people from doing as they please.