9783540706038, titled "IP Traffic Theory and Performance" | Springer Verlag, September 1, 2008, cover price $299.00 |
About this edition: Reading without meditation is sterile; meditation without reading is liable to error; prayer without meditation is lukewarm; meditation without prayer is unfruitful; prayer, when it is fervent, wins contemplation, but to obtain contemplation without prayer would be rare, even miraculous.
9783642089541 | Springer Verlag, November 29, 2010, cover price $299.00 |
About this edition: Reading without meditation is sterile; meditation without reading is liable to error; prayer without meditation is lukewarm; meditation without prayer is unfruitful; prayer, when it is fervent, wins contemplation, but to obtain contemplation without prayer would be rare, even miraculous.