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Success is not about the money you make, it's about the difference you make in people's lives.

The hardest part of designing a system is deciding what to build.

I'm not a girl who lives in fear. I'm a girl who lives in freedom.

The only freedom which deserves the name is that of pursuing our own good in our way， so long as we do not attempt to deprive others of theirs or impede their efforts to obtain it.

"Home is wherever I'm with you."

The heart has its reasons which reason knows nothing of.

理解自然的途徑是通過數(shù)學的語言。