Montag, 29. Juni 2009
Learning algebra isn't about acquiring a specific tool; it's about building up a mental muscle that will come in handy elsewhere. You don't go to ..
the gym because you're interested in learning how to operate a StairMaster; you go to the gym because operating a StairMaster does something laudable to your body, the benefits of which you enjoy during the many hours of the week when you're not on a StairMaster. --Steven Johnson "Everything bad is good for you".
Montag, 15. Juni 2009
Freitag, 5. Juni 2009
Mittwoch, 3. Juni 2009
Montag, 1. Juni 2009
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