The truth is not always beautiful, nor beautiful words the truth.
Old minds are like old horses; you must exercise them if you wish to keep them in working order.
Words are not mere sounds or marks， but signs of facts.
The important thing is not to stop questioning. Curiosity has its own reason for existing.
決策的質(zhì)量不是由其結(jié)果來衡量，而是由做出決策的過程來衡量。