解释：处于安全环境时要考虑到可能出现的危险，考虑到危险就会有所准备，事先有了准备就可以避免祸患。
世界因你的榜样而改变，而不是因你的观点。
The community stagnates without the impulse of the individual. The impulse dies away without the sympathy of the community.
To create is to resist—to resist silence, to resist forgetting.
Innovation is the backbone of modern mining—without it, we're just digging holes in the ground.