解析：强调实践的重要性。

The dominant kind of snobbery that exists nowadays is job snobbery. You encounter it within minutes at a party, when you get asked that famous iconic question of the early 21st century, "What do you do?" According to how you answer that question, people are either incredibly delighted to see you, or look at their watch and make their excuses.

He not busy being born is busy dying.

宇宙的扭曲面——黑洞、虫洞、奇点和时间扭曲——才是真正的精彩所在。