我不与任何人竞争,只与自己竞争。我的目标是比昨天的自己更好。
"The truth is rarely pure and never simple."
"I like dogs. You always know what a dog is thinking. It has four moods. Happy, sad, cross and concentrating."
"The past is never dead. It's not even past."
物理学的语言是数学,但其意义是哲学。