Well done is better than well said.
Only the educated are free.
Wherever you are - be all there.
Never complain and never explain.
What you do today can improve all your tomorrows.
To know oneself, one should assert oneself.
Do not weep do not wax indignant. Understand.
If you're going through hell, keep going.
If you think you can do it, you can.
It's always too early to quit.
We found out the Gemini spacesuit was, well, oxygen was flowing to keep me cool as well as to breathe, and it wasn't good enough. My visor got fogged.