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

没有丑陋的爱，也没有英俊的监狱。

如果我们愿意负责任地开发，粮食安全的未来就在海浪之下。

Competition regulates the rate of profit, and profit regulates the rate of accumulation.

The world always seems brighter when you've just made something that wasn't there before.

在数学中，提出问题的艺术必须比解决问题更有价值。