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寫作古文的難度，比登上青天還要難。

On morals: "The one thing that offends me the most is when I walk by a bank and see ads trying to convince people to take out second mortgages on their home so they can go on vacation. That's approaching evil."

相信有時(shí)需要勇氣。

The trade-off between bias and variance is a fundamental concept in machine learning.

我們不是七個(gè)人，我們是一體的。我們是防彈的。

未來是為每個(gè)人創(chuàng)造一個(gè)更美好的世界。