古之立言者，皆卓然有以自见，而后世莫能易也。
古代著书立说的人，都有卓越的见解而自成一家，后世无法轻易改变。
生命太短暂，不要把时间浪费在无关紧要的事情上。
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.”
我被抒情诗、短诗所吸引，在那里每一个词都必须精确。
The development of computational complexity theory has shown us that not all problems are created equal.