Magic's just science that we don't understand yet.

We over estimate technology in the short term and under estimate technology in the long term.

If we have learned one thing from the history of invention and discovery, it is that, in the long run-and often in the short one-the most daring prophecies seem laughably conservative.

The moon is the first milestone on the road to the stars.

It was the mark of a barbarian to destroy something one could not understand.

Few artists thrive in solitude and nothing is more stimulating than the conflict of minds with similar interests.

The realisation that our small planet is only one of many worlds gives mankind the perspective it needs to realise sooner that our own world belongs to all its creatures.