Godin's theory is that quitting is a vital part of success.

戈丁的理论是，放弃是成功的重要部分。

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So, it is vital to study and develop new chaotic signal generator and push Chaos theory to good use.

因此，研究并开发新的混沌信号发生器对混沌理论推向实用化至关重要。

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The practice holds the vital role in the Marx philosophy theory, forms the history from the concept to look, pushes forward, it initiated in 《Economic Philosophy manuscript 1844》 the alienation labor.

实践在马克思哲学理论中占有重要作用，从概念形成史来看，向前推，它肇始于《1844年经济学哲学手稿》中的异化劳动；

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The discovery of quantum mechanics and Einstein's theory of relativity, vital to much of modern technology and economic activity, including the transistor, the laser and the atomic bomb.

ECONOMIST: Letters

The Peking Man fossils are a vital component of the Out of Africa 1 migration theory, which proposes that Homo erectus first appeared in Africa around two million years ago before spreading north and east (modern humans, Homo sapiens, would follow much later and supplant all other Homo species).

BBC: 'Peking Man' older than thought

In traditional Chinese medical theory, the core concept is the qi, the vital energy that is believed to circulate throughout the body.

CNN: SPECIAL REPORT: HEALTH