The condition of mere nature...is a condition of war of everyone against everyone.
纯粹自然状态的条件...是每个人对每个人的战争状态。
Live each day as if it were your last.
意志不是一种特殊的能力，而是心灵朝向明确目标的整体活动。
Quality is free. It's not a gift, but it's free. What costs money are the unquality things -- all the actions that involve not doing jobs right the first time.
给一个人火，他能温暖一天；但把他点燃，他能温暖余生。