Quote of the Day

This piece is widely known, but I never tire of reading it. It comes from a 1906 letter by Alfred Marshall to his student Arthur Bowley (of the Edgworth-Bowley Box)

1. Use mathematics as shorthand language, rather than as an engine of inquiry. 
2. Keep to them till you have done. 
3. Translate into English. 
4. Then illustrate by examples that are important in real life.  
5. Burn the mathematics. 
6. If you can’t succeed in 4, burn 3. This I do often.