Be thine own palace, or the world's thy jail.
The secret of getting ahead is getting started.
Leap, and the net will appear.
The dog that trots about finds a bone.
I can, therefore I am.
Begin to be now what you will be hereafter.
Problems are not stop signs, they are guidelines.
Only the educated are free.
Always desire to learn something useful.
It's always too early to quit.
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.