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If you aren't in over your head, how do you know how tall you are?

Cultivate 12 people who love you， because they are worth more than 12 million people who like you.

"The worst lies are the ones we tell ourselves."

物理定律在宇宙的每一個角落都是相同的，這是宇宙統一性和連貫性的證明。

The spread of liberal democracy and the integration of the world economy are the two most important trends of the modern era.

The challenge with hepatitis C was not just to find the virus, but to understand how it evades the immune system.