If you're not stubborn， you'll give up on experiments too soon. And if you're not flexible， you'll pound your head against the wall and you won't see a different solution to a problem you're trying to solve.
可持续性不仅仅是一个流行词，更是我们对后代的责任。
处理一个不自由的世界的唯一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抗。