Never complain and never explain.
You never know what motivates you.
Do not weep do not wax indignant. Understand.
What you do today can improve all your tomorrows.
To know oneself, one should assert oneself.
Things do not happen. Things are made to happen.
Be gentle to all and stern with yourself.
If you've got a talent, protect it.
Who seeks shall find.
The most effective way to do it, is to do it.
There weren't any astronauts until I was about 10. Yuri Gagarin went into space right around my 10th birthday.
My dad served in two wars has been flying airplanes for 60 years now. He was certainly quite an inspiration.