“Trying to build a spaceship by making an aeroplane fly faster and high...” — Henry Spencer Quote

Trying to build a spaceship by making an aeroplane fly faster and higher is like trying to build an aeroplane by making locomotives faster and lighter - with a lot of effort, perhaps you could get something that more or less works, but it really isn't the right way to proceed.

The Apollo programme of the 1960s had some weight problems, too; in particular, the lunar lander needed some fairly drastic weight-reduction work.

One of the headaches of high-tech test programmes is having to debug the test arrangements before you can start debugging the things you're trying to test.

NASA has never had a problem finding capable people to be astronauts. NASA's problem was, and still is, finding ways to cut the list of capable applicants down to a manageable length.

In my head, I'd love to go on a vacation to somewhere exotic and far away and in the middle of nowhere. But then I think about the effort it would take to book a flight and a hotel, etc., and I just end up staycationing.

The mode by which the inevitable comes to pass is effort.

We simply keep telling our kids that you have to listen to us, you have to do what we say, but do we take the effort of explaining it to them that why they need to listen to us?

It is always the start that requires the greatest effort.

A Train was born without any effort - if was like writing a letter to a friend.