The dog that trots about finds a bone.
You never know what motivates you.
Well done is better than well said.
The secret of getting ahead is getting started.
I can, therefore I am.
It's always too early to quit.
By failing to prepare, you are preparing to fail.
If you can dream it, you can do it.
To know oneself, one should assert oneself.
If you think you can do it, you can.
I think that somebody with the resources and innovation and the idea is going to come out of nowhere and come up with a successful space travel program.