Always desire to learn something useful.
Only the educated are free.
You never know what motivates you.
Well done is better than well said.
Be thine own palace, or the world's thy jail.
I can, therefore I am.
By failing to prepare, you are preparing to fail.
Be gentle to all and stern with yourself.
The secret of getting ahead is getting started.
If you think you can do it, you can.
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.