Be gentle to all and stern with yourself.
Know or listen to those who know.
Leap, and the net will appear.
I can, therefore I am.
The dog that trots about finds a bone.
The wise does at once what the fool does at last.
Be thine own palace, or the world's thy jail.
Only the educated are free.
After a storm comes a calm.
The secret of getting ahead is getting started.
All science is either physics or stamp collecting.