Always desire to learn something useful.
Begin to be now what you will be hereafter.
Well done is better than well said.
If you think you can do it, you can.
Either you run the day or the day runs you.
Be thine own palace, or the world's thy jail.
The secret of getting ahead is getting started.
To know oneself, one should assert oneself.
I can, therefore I am.
Without hard work, nothing grows but weeds.
The best way to have a good idea is to have a lot of ideas.
Satisfaction of one's curiosity is one of the greatest sources of happiness in life.
Facts are the air of scientists. Without them you can never fly.