实现明天的唯一限制是我们今天的疑虑。

I don't need a reason to be grateful.

处理一个不自由的世界唯一的方法是变得如此绝对自由，以至于你的存在本身就是一种反叛。

If you don’t strive to uncover what is unseen and understand its nature, you will be ill prepared to lead.

谷物生产的效率不是选择，而是必需。

【大意】只有不求利益之人才能不导致害处，只有不求福分之人才能没有祸患。

True happiness comes from inner satisfaction.

耐心和毅力是科学发现的关键。

Sustainability in mining isn't an option—it's a responsibility we owe to future generations.