Now I'm a scientific expert; that means I know nothing about absolutely everything.

Behind every man now alive stand thirty ghosts, for that is the ratio by which the dead outnumber the living.

Getting information from the internet is like getting a glass of water from the Niagara Falls.

A well-stocked mind is safe from boredom.

But he knew well enough that any man in the right circumstances could be dehumanised by panic.

At the present rate of progress, it is almost impossible to imagine any technical feat that cannot be achieved - if it can be achieved at all - within the next few hundred years.

After their encounter on the approach to Jupiter, there would aways be a secret bond between them---not of love, but of tenderness, which is often more enduring.