But what is happiness except the simple harmony between a man and the life he leads?

轧棉机的发明是一系列无法预见的 circumstances 的结果。

Confidence isn't optimism or pessimism, and it's not a character attribute. It's the expectation of a positive outcome.

创造意味着热爱生活。只有当你足够热爱生活，想要增添它的美丽时，你才能具有创造力。