Know or listen to those who know.
If you've got a talent, protect it.
Who seeks shall find.
Things do not happen. Things are made to happen.
Without hard work, nothing grows but weeds.
Always desire to learn something useful.
Begin to be now what you will be hereafter.
Leap, and the net will appear.
The wise does at once what the fool does at last.
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.