痛苦是暂时的。它可能持续一分钟，一小时，一天，或一年，但最终它会消退，被其他东西取代。然而，如果我放弃，痛苦将永远持续。

"The power of film is to illuminate the shadows of our existence."

唯一真正的失败是不去尝试。

Let us unite and fight for the independence and freedom of our country.

The writer must be a defender of freedom, even at the cost of his own comfort.

随机实验是因果推理的黄金标准，但它们并不总是可行的。

跨行业和跨国界的合作对于满足世界能源需求至关重要。