Many people believe that current physics and mathematics are, on balance, contributing usefully to the survival of mankind in a state of dignity. 

We disagree. But should humans survive, gazing at stars on a clear night will remain one of the things that make existence nontrivial. 

We hope that at some point this book will remind you of the first time you looked up.



서문쓰다가 갑자기 문학하심


Sachs & Wu - General Relativity for Mathematicians