The surest way to tame a prisoner is to let him believe he’s free.
森林的真正价值不能仅用板英尺来衡量。
"In the midst of winter, I found there was, within me, an invincible summer."
What you risk reveals what you value.
安全不是优先事项,而是一种价值观。你无法优先考虑永远不应妥协的事情。
Mathematics is not about numbers, equations, computations, or algorithms: it is about understanding.