Wherever you are - be all there.
Go for it now. The future is promised to no one.
Always desire to learn something useful.
It's always too early to quit.
The wise does at once what the fool does at last.
To know oneself, one should assert oneself.
Things do not happen. Things are made to happen.
To be a good loser is to learn how to win.
Problems are not stop signs, they are guidelines.
Begin to be now what you will be hereafter.
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.