I sent my Soul through the Invisible, Some letter of that After-life to spell: And by and by my Soul return'd to me, And answer'd "I Myself am Heav'n and Hell."

"Sometimes, the hardest thing and the right thing are the same."

未来属于那些敢于梦想并有勇气追求梦想的人。

The concept of nondeterminism in computation is one of the most important ideas in computer science.

元素并非随意分布，而是遵循更高的秩序。