Lost wealth may be replaced by industry, lost knowledge by study, lost health by temperance or medicine, but lost time is gone forever.

A place for everything, and everything in its place.

We learn wisdom from failure much more than from success. We often discover what will do, by finding out what will not do; and probably he who never made a mistake never made a discovery.

We often discover what will do, by finding out what will not do; and probably he who never made a mistake never made a discovery.

In any 'big science' enterprise, like planetary exploration, where you must work in big teams of similarly driven people, it is important also to know how to work alongside others even when they may be your fiercest competitors.

My father was a lawyer and to my best knowledge nobody in my family before had interest in science.

The first rule of world-building is available physics, which basically means that if you want it to feel real, it has to follow the same rules as this world, from gravity to how human behaviour works. If you have a fantasy element that doesn't obey the laws of physics, make sure that it has a fantasy explanation.

If you look at other countries, you'll find lots of girls doing physics, engineering, and science. It's something to do with the kind of culture we have in the English-speaking world about what's appropriate for each of the two sexes.