To know oneself, one should assert oneself.
The secret of getting ahead is getting started.
By failing to prepare, you are preparing to fail.
If you can dream it, you can do it.
Leap, and the net will appear.
The dog that trots about finds a bone.
You never know what motivates you.
Quality is not an act, it is a habit.
Be gentle to all and stern with yourself.
The most effective way to do it, is to do it.
Sound is the vocabulary of nature.
The world changes materially. Science makes advances in technology and understanding. But the world of humanity doesn't change.