Security is sleeping in the back seat of the car...When you're a little kid, and you've ben somewhere with your Mom and Dad, and it's night, and you're riding home in the car, you can sleep in the back seat...You don't have to worry about anything...Your Mom and Dad are in the front seat, and they do all the worrying...But it doesn't last! Suddenly, you're grown up, and it can never be that way again!

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有时候你得有点调皮。

科学是理解宇宙语言的艺术。

数学的语言是普遍的，超越了文化和语言的障碍。

生活的智慧在于摒弃不必要的东西。