Know or listen to those who know.
By failing to prepare, you are preparing to fail.
Only the educated are free.
It's always too early to quit.
The secret of getting ahead is getting started.
The wise does at once what the fool does at last.
Wherever you are - be all there.
Without hard work, nothing grows but weeds.
Be kind whenever possible. It is always possible.
The most effective way to do it, is to do it.
I think space will be conquered through the mind rather than the clumsy medium of space travel.