What you do today can improve all your tomorrows.
Always desire to learn something useful.
Only the educated are free.
The dog that trots about finds a bone.
If you've got a talent, protect it.
If you're going through hell, keep going.
Things do not happen. Things are made to happen.
Be kind whenever possible. It is always possible.
It's always too early to quit.
After a storm comes a calm.
The history of astronomy is a history of receding horizons.
Equipped with his five senses, man explores the universe around him and calls the adventure Science.