轧棉机的发明是需求和观察的结果。
The invention of the cotton gin was the result of necessity and observation.
To truly know the world, look deeply within your own being; to truly know yourself, take real interest in the world.
True innovation comes from understanding the unmet needs of consumers and having the courage to act on them.
文本是从无数文化中心引用的语录组成的组织。
永远不要停止学习，因为世界永远不会停止变化。
Life is too short to waste time hating anyone.