Man is neither wholly good nor wholly evil, but a mixture of both.

Safety is not just a policy, it's a culture that must be embedded in every operation we undertake.

在科学中，耐心不仅是一种美德；它是一种必需品。

学习数学的最好方法就是去做数学。

政治制度的力量在于其适应变化环境的能力。

If you don’t take risks, you’ll never know what you’re capable of.