It's better to work with a nice category containing some nasty objects, than a nasty category containing only nice objects. John C. Baez More Quotes by John C. Baez More Quotes From John C. Baez When somebody says to me-which they do like every 5 years- "How does it feel to be over the hill?" my response is, "I'm just heading up the mountain." John C. Baez inspirational-birthday mountain years Any effect, constant, theorem or equation named after Professor X was first discovered by Professor Y , for some value of Y not equal to X. John C. Baez professors statistics firsts Why speculate when you can calculate? John C. Baez statistics ... commutative algebra is a lot like topology, only backwards. John C. Baez topology algebra math