我们要加强国际合作，共同应对能源安全和气候变化的挑战。

Marxian Socialism must always remain a portent to the historians of Opinion — how a doctrine so illogical and so dull can have exercised so powerful and enduring an influence over the minds of men， and， through them， the events of history.

I believe in second chances because I know what it's like to need one.

"The pursuit of knowledge is a lifelong journey with no final destination."