Be kind whenever possible. It is always possible.
You never know what motivates you.
Only the educated are free.
Problems are not stop signs, they are guidelines.
Either you run the day or the day runs you.
The secret of getting ahead is getting started.
What you do today can improve all your tomorrows.
Well done is better than well said.
Things do not happen. Things are made to happen.
Never complain and never explain.
There's a lot of interest from the medical community on how things develop in microgravity, and the hope, later, that is expected to apply to what the changes are in humans as well.